{"id":9405,"date":"2024-09-05T11:38:25","date_gmt":"2024-09-05T09:38:25","guid":{"rendered":"https:\/\/www.cola5677.odns.fr\/?p=9405"},"modified":"2024-10-28T12:11:53","modified_gmt":"2024-10-28T11:11:53","slug":"black-gemstone-24-obscure-gems","status":"publish","type":"post","link":"https:\/\/www.gemgazette.com\/en\/style-en\/black-gemstone-24-obscure-gems\/","title":{"rendered":"Black gemstone: 24 obscure gems!"},"content":{"rendered":"\n<p>It&#8217;s finally time for black aficionados! If you&#8217;re tired of <a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/onyx-properties-uses-and-benefits\/\">onyx<\/a> or <a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/obsidian-properties-uses-and-virtues\/\">obsidian<\/a>, here&#8217;s a short list you&#8217;ll find very useful! Which black gemstone will charm you?  <\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1500\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2024\/09\/Pierres-Noires-EN.png\" alt=\"a banner with the 24 black stones described in the article\" class=\"wp-image-9410\" style=\"width:690px;height:auto\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Pierres-Noires-EN.png 1000w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Pierres-Noires-EN-200x300.png 200w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Pierres-Noires-EN-683x1024.png 683w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Pierres-Noires-EN-768x1152.png 768w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Pierres-Noires-EN-600x900.png 600w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Pierres-Noires-EN-400x600.png 400w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n<\/div>\n\n\n<div class=\"wp-block-ultimate-post-table-of-content ultp-block-200356\"><div class=\"ultp-block-wrapper\"><div class=\"ultp-block-toc\"><div class=\"ultp-toc-header\"><div class=\"ultp-toc-heading\">Black Gemstones: Top 24<\/div><div class=\"ultp-collapsible-toggle ultp-toggle-collapsed ultp-collapsible-right\"><a class=\"ultp-collapsible-icon ultp-collapsible-open\" href=\"javascript:;\"><svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 34.1 19.95\"><path d=\"M32.05 19.949a2.041 2.041 0 0 1-1.45-.6L17.05 5.8 3.498 19.349a2.05 2.05 0 0 1-2.9-2.9l16.45-16.45 16.448 16.45a2.05 2.05 0 0 1-1.448 3.5\"><\/path><\/svg><\/a><a class=\"ultp-collapsible-icon ultp-collapsible-hide\" href=\"javascript:;\"><svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 34.1 19.95\"><path d=\"M32.05 19.949a2.041 2.041 0 0 1-1.45-.6L17.05 5.8 3.498 19.349a2.05 2.05 0 0 1-2.9-2.9l16.45-16.45 16.448 16.45a2.05 2.05 0 0 1-1.448 3.5\"><\/path><\/svg><\/a><\/div><\/div><div class=\"ultp-block-toc-style1 ultp-block-toc-body\" style=\"display:none;\"><ul class=\"ultp-toc-lists\"><li><a href=\"#Les_pierres_roses\">Black Gemstones<\/a><ul class=\"ultp-toc-lists\"><li><a href=\"#Les_pierres_roses_par_nom:\">Black stones by name:<\/a><\/li><\/ul><\/li><li><a href=\"#N\u00b0:_Saphir_rose\">N\u00b01: Sapphire<\/a><\/li><li><a href=\"#N\u00b0:_Grenat_Malaya_ou_Malaia_rose\">N\u00b02: Garnet <\/a><\/li><li><a href=\"#N\u00b0:_Quartz_rose\">N\u00b03: Smoky quartz<\/a><\/li><li><a href=\"#N\u00b0:_Morganite\">N\u00b04: Rutile<\/a><\/li><li><a href=\"#N\u00b0:_Thulite\">N\u00b05: Jade<\/a><\/li><li><a href=\"#N\u00b0:_Tourmaline_rose\">N\u00b06: Schorl<\/a><\/li><li><a href=\"#N\u00b0:_Aventurine_rose_ou_Quartz_fraize\">N\u00b07: Jet<\/a><\/li><li><a href=\"#N\u00b0:_Jaspe_rose\">N\u00b08: Sardonyx<\/a><\/li><li><a href=\"#N\u00b0:_Chiastolite\">N\u00b09: Obsidian<\/a><\/li><li><a href=\"#Kunzite\">N\u00b010: Grossular<\/a><\/li><li><a href=\"#Labradorite\">N\u00b011: Titanite<\/a><\/li><li><a href=\"#Agate\">N\u00b012: Jasper<\/a><\/li><li><a href=\"#Spinelle\">N\u00b013: Spinel<\/a><\/li><li><a href=\"#Rhodochrosite\">N\u00b014: Diopside<\/a><\/li><li><a href=\"#Perle\">N\u00b015: Aventurine<\/a><\/li><li><a href=\"#Topaze\">N\u00b016: Agate<\/a><\/li><li><a href=\"#Rhodonite\">N\u00b017: Moissanite<\/a><\/li><li><a href=\"#Jade_Jad\u00e9ite\">N\u00b018: Onyx<\/a><\/li><li><a href=\"#Diamant\">N\u00b019: Diamond<\/a><\/li><li><a href=\"#Scapolite\">N\u00b020: Scapolite<\/a><\/li><li><a href=\"#Pezzotaite\">N\u00b021: Moonstone<\/a><\/li><li><a href=\"#Opale\">N\u00b022: Opal<\/a><\/li><li><a href=\"#N\u00b0:_Opale\">N\u00b023: Tahiti Pearl<\/a><\/li><li><a href=\"#N\u00b0:_Verre\">N\u00b024: Hematite<\/a><\/li><\/ul><\/div><\/div><\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-5577c79642aa0210294fcb59d36dd35b\" id=\"Les_pierres_roses\">Black Gemstones<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"Les_pierres_roses_par_nom:\">Black stones by name:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sapphire<\/li>\n\n\n\n<li>Garnet<\/li>\n\n\n\n<li>Smoky <a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/quartz-properties-uses-and-virtues\/\">quartz<\/a><\/li>\n\n\n\n<li>Rutile<\/li>\n\n\n\n<li><a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/hydrogrossular-properties-uses-and-benefits\/\">Hydrogrossular<\/a><\/li>\n\n\n\n<li>Schorl<\/li>\n\n\n\n<li><a href=\"https:\/\/www.gemgazette.com\/en\/collection-mohs-1-to-3-highly-protected-jewellery-and-collection\/jet-properties-uses-and-virtues\/\">Jet<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/sardonyx-properties-uses-and-virtues\/\">Sardonyx<\/a><\/li>\n\n\n\n<li>Obsidian<\/li>\n\n\n\n<li>Grossular<\/li>\n\n\n\n<li><a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/sphene-titanite-properties-uses-and-virtues\/\">Titanite<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/jasper-properties-uses-and-virtues\/\">Jasper<\/a><\/li>\n\n\n\n<li>Spinel<\/li>\n\n\n\n<li>Diopside<\/li>\n\n\n\n<li><a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/aventurine-properties-uses-and-virtues\/\">Aventurine<\/a><\/li>\n\n\n\n<li>Agate<\/li>\n\n\n\n<li>Moissanite<\/li>\n\n\n\n<li>Onyx<\/li>\n\n\n\n<li>Diamond<\/li>\n\n\n\n<li><a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/scapolite-properties-uses-and-virtues\/\">Scapolite<\/a><\/li>\n\n\n\n<li>Moonstone<\/li>\n\n\n\n<li>Opal<\/li>\n\n\n\n<li><a href=\"https:\/\/www.gemgazette.com\/en\/collection-mohs-1-to-3-highly-protected-jewellery-and-collection\/pearl-properties-uses-and-virtues\/\">Pearl<\/a><\/li>\n\n\n\n<li>Hematite<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-d0fb94cc464fe002f764a16985bc99e3\" id=\"N\u00b0:_Saphir_rose\"><strong>N\u00b01: Sapphire<\/strong><\/h2>\n\n\n\n<p>Black sapphire is a variety of <a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/corundum-properties-uses-and-virtues\/\">corundum<\/a> showing shades of deep black, often tinged with brown or blue.<\/p>\n\n\n\n<p><strong>Positives:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A highly coveted gemstone , but much more affordable than other colors<\/li>\n\n\n\n<li>A little-known color<\/li>\n\n\n\n<li>Because there&#8217;s more to life than blue sapphires<\/li>\n\n\n\n<li>Available in synthetic for those who prefer to avoid mines.<\/li>\n\n\n\n<li>One of the best durabilities on the market after <a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/diamond-properties-uses-and-virtues\/\">diamonds<\/a> and <a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/moissanite-properties-uses-and-virtues\/\">moissanites<\/a><\/li>\n<\/ul>\n\n\n\n<p><strong>But be careful:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>There are a large number of counterfeit or misdescribed products on the market.<\/li>\n\n\n\n<li>Sapphires are often treated , but black sapphires are less are less affected than coloured sapphires.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"3024\" height=\"4032\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2024\/09\/Saphir-naturel-noir-exception-3.png\" alt=\"\" class=\"wp-image-9320\" title=\"Color-changing synthetic sapphire in cut stone - Photo \u00a9 by Laur\u00e9line Colliard FGA\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Saphir-naturel-noir-exception-3.png 3024w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Saphir-naturel-noir-exception-3-225x300.png 225w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Saphir-naturel-noir-exception-3-768x1024.png 768w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Saphir-naturel-noir-exception-3-1152x1536.png 1152w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Saphir-naturel-noir-exception-3-1536x2048.png 1536w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Saphir-naturel-noir-exception-3-900x1200.png 900w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Saphir-naturel-noir-exception-3-600x800.png 600w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Saphir-naturel-noir-exception-3-450x600.png 450w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Saphir-naturel-noir-exception-3-300x400.png 300w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Saphir-naturel-noir-exception-3-150x200.png 150w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Saphir-naturel-noir-exception-3-1200x1600.png 1200w\" sizes=\"auto, (max-width: 3024px) 100vw, 3024px\" \/><figcaption class=\"wp-element-caption\">Saphir naturel noir &#8211; Photo\u00a9 par Laur\u00e9line Colliard FGA<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-ef5667b0846228d15133fb8427877794\" id=\"N\u00b0:_Grenat_Malaya_ou_Malaia_rose\"><strong>N\u00b02: Garnet <\/strong><\/h2>\n\n\n\n<p>Black garnet may belong to several garnet varieties , such as <a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/grenat-almandin-proprietes-utilisations-et-vertus\/\">almandine<\/a> or <a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/rhodolite-properties-uses-and-benefits\/\">rhodolite<\/a>. Its black hues are often tinged with red or violet. <\/p>\n\n\n\n<p><strong>Positives:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A clean, opaque black color<\/li>\n\n\n\n<li>A rather original and little-used black semi-precious stone (fine stone)<\/li>\n\n\n\n<li>Affordable<\/li>\n\n\n\n<li>Very few treatments or synthetics, so few tricks with unscrupulous sellers<\/li>\n\n\n\n<li>Durability for regular use<\/li>\n<\/ul>\n\n\n\n<p><strong>But be careful:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>No synthetics for the <a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/garnet-properties-uses-and-virtues\/\">garnets<\/a><\/li>\n\n\n\n<li>Not much else! Watch out for other fake black stones being sold as garnet .<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"775\" height=\"800\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2024\/09\/Chlorite-Group-Garnet-Group-65646.jpg\" alt=\"black garnet rough stone showing its geometrical shape perfect natural doedecahedron with black color\" class=\"wp-image-9323\" title=\"Natural malaya or malaia garnet in cut stone - Photo \u00a9 by Laur\u00e9line Colliard FGA\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Chlorite-Group-Garnet-Group-65646.jpg 775w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Chlorite-Group-Garnet-Group-65646-291x300.jpg 291w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Chlorite-Group-Garnet-Group-65646-768x793.jpg 768w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Chlorite-Group-Garnet-Group-65646-581x600.jpg 581w\" sizes=\"auto, (max-width: 775px) 100vw, 775px\" \/><figcaption class=\"wp-element-caption\">Black garnet by Rob Lavinsky, CC-BY-SA-3.0<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-febd52cf39504192270f52c68ac2264b\" id=\"N\u00b0:_Quartz_rose\"><strong>N\u00b03: Smoky quartz<\/strong><\/h2>\n\n\n\n<p><a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/smoky-quartz-properties-uses-and-benefits\/\">Smoky quartz<\/a> is a popular variety of quartz , with shades ranging from brown to gray-black.<\/p>\n\n\n\n<p><strong>Positives:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>For fans of softer, more nuanced blacks<\/li>\n\n\n\n<li>Available in synthetic smoky quartz for those who prefer to avoid mines<\/li>\n\n\n\n<li>Good durability<\/li>\n\n\n\n<li>Affordable and easy to find<\/li>\n<\/ul>\n\n\n\n<p><strong>But be careful:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Synthetic <a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/amethyst-properties-uses-and-virtues\/\">amethysts<\/a> are very difficult to recognize, even with professional equipment.<\/li>\n\n\n\n<li>Synthetics are not necessarily indicated by the seller and may be sold as natural.<\/li>\n\n\n\n<li>Not much! Quartz are generally reliable and affordable! <\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"750\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2023\/12\/80_file.png\" alt=\"Smoky quartz stone in transparent brown polished bead on neutral background to illustrate smoky quartz\" class=\"wp-image-155\" title=\"Rose quartz as polished cube - Photo \u00a9 by Laur\u00e9line Colliard FGA\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/80_file.png 1000w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/80_file-600x450.png 600w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/80_file-768x576.png 768w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/80_file-300x225.png 300w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/80_file-800x600.png 800w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/80_file-400x300.png 400w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/80_file-200x150.png 200w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Spherical smoky quartz &#8211; Photo \u00a9 by Laur\u00e9line Colliard FGA <\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-bf1ffb6b3741c249fad4b82ae384d4dd\" id=\"N\u00b0:_Morganite\"><strong>N\u00b04: Rutile<\/strong><\/h2>\n\n\n\n<p>Rutile is a rather fragile gem that displays a wide variety of colors, including shades of black and gray. It is most commonly found as inclusions in other stones, such as rutilated quartz. <\/p>\n\n\n\n<p><strong>Positives:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A stone with brilliant metallic reflections<\/li>\n\n\n\n<li>A beautiful stone to collect<\/li>\n\n\n\n<li>An often overlooked gem<\/li>\n\n\n\n<li>Exceptional dispersion, 6 times larger than diamond (observable on transparent and very clear specimens )<\/li>\n\n\n\n<li>Available in synthetic for those who prefer to avoid mines<\/li>\n<\/ul>\n\n\n\n<p><strong>But be careful:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A fairly fragile stone, with a hardness of 6 to 6.5 on the <abbr class='c2c-text-hover' title='Scale used to describe the hardness (scratch resistance) of a mineral from the lowest hardness (1 - talc) to the highest (10 - diamond)'>Mohs scale<\/abbr>.<\/li>\n\n\n\n<li>Not often used in jewelry because it &#8216;s often very dark (but that&#8217;s what we&#8217;re looking for in this in this article , so it&#8217;s perfect timing!)<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"703\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2024\/09\/Rutile-155004.jpg\" alt=\"natural black rutile crystal showing geometric strata and a glossy, almost metallic black color.\" class=\"wp-image-9331\" style=\"width:607px;height:auto\" title=\"Pink Morganite as cut stone - Photo \u00a9 by Laur\u00e9line Colliard FGA\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Rutile-155004.jpg 800w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Rutile-155004-300x264.jpg 300w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Rutile-155004-768x675.jpg 768w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Rutile-155004-600x527.jpg 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">Rutile &#8211; Rob Lavinsky, CC-BY-SA-3.0<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-cc05f4d22a2596d9b05115671d174442\" id=\"N\u00b0:_Thulite\"><strong>N\u00b05: Jade<\/strong><\/h2>\n\n\n\n<p>Black jade comes in two varieties : jadeite and nephrite jade. Both show solid blacks or tinges of green and brown. <\/p>\n\n\n\n<p><strong>Positives:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The world&#8217; s toughest stones<\/li>\n\n\n\n<li>Beautiful pure blacks , but also nuanced shades<\/li>\n\n\n\n<li>Jade is perfect for jewelry, sculptures or collecting.<\/li>\n\n\n\n<li>Affordable for both varieties in opaque and black shades<\/li>\n<\/ul>\n\n\n\n<p><strong>But be careful:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A multitude of fakes and imitations on the market due to the popularity of jade jadeite<\/li>\n\n\n\n<li>Jades are often treated, repaired, bleached and dyed, so care must be taken to select a reputable vendor who will indicate the grade of each piece of jade sold. <\/li>\n\n\n\n<li>Beware of the fractures and inclusions that can be found in jade, as they will greatly reduce the stone&#8217;s toughness.<\/li>\n\n\n\n<li>No synthetics<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2024\/09\/Jade-nehrite-noir.jpg\" alt=\"black nephrite jade medallion with green highlights\" class=\"wp-image-9341\" style=\"width:537px;height:auto\" title=\"Pink thulite as rough stone - Photo \u00a9 by Laur\u00e9line Colliard FGA\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Jade-nehrite-noir.jpg 1024w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Jade-nehrite-noir-300x300.jpg 300w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Jade-nehrite-noir-150x150.jpg 150w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Jade-nehrite-noir-768x768.jpg 768w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Jade-nehrite-noir-600x600.jpg 600w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Jade-nehrite-noir-120x120.jpg 120w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Black nephrite jade &#8211; Keris Indonesia, CC BY 2.0<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-cdef44002dc612178d8c76996902ed7e\" id=\"N\u00b0:_Tourmaline_rose\"><strong>N\u00b06: <\/strong>Schorl<\/h2>\n\n\n\n<p>Schorl is a tourmaline variety with generally pure black hues.<\/p>\n\n\n\n<p><strong>Positives:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A stone with a beautiful , well-marked black<\/li>\n\n\n\n<li>Little known<\/li>\n\n\n\n<li>Excellent hardness for everyday use<\/li>\n\n\n\n<li>Affordable and lightly treated<\/li>\n<\/ul>\n\n\n\n<p><strong>But be careful:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Some sellers may present other stones as tourmaline, which may mislead buyers<\/li>\n\n\n\n<li>No synthetics in <a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/tourmaline-properties-uses-and-virtues\/\">tourmalines<\/a><\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"750\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2023\/12\/70_file.png\" alt=\"schorl stone or black tourmaline in rough stone on a neutral background to illustrate the tourmaline\" class=\"wp-image-139\" title=\"Pink tourmaline as cut stone - Photo \u00a9 by Laur\u00e9line Colliard FGA\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/70_file.png 1000w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/70_file-600x450.png 600w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/70_file-768x576.png 768w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/70_file-300x225.png 300w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/70_file-800x600.png 800w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/70_file-400x300.png 400w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/70_file-200x150.png 200w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\"><a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/black-tourmaline-or-schorl-properties-uses-and-virtues\/\">Black tourmaline<\/a> or rough schorl &#8211; Photo \u00a9 by Laur\u00e9line Colliard FGA <\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-3d78f43cf65e885d19266a6d1a0afcaf\" id=\"N\u00b0:_Aventurine_rose_ou_Quartz_fraize\"><strong>N\u00b07: Jet<\/strong><\/h2>\n\n\n\n<p>Le jais est une <abbr class='c2c-text-hover' title='gemme issue du monde organique (plante ou animal)'>gemme organique<\/abbr> issue de la carbonisation et fossilisation d&#8217;un arbre. Il montre des nuances de noir pur, d&#8217;o\u00f9 l&#8217;expression &#8220;noir de jais&#8221; ! <\/p>\n\n\n\n<p><strong>Positives:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A stone with absolute black hues<\/li>\n\n\n\n<li>A lesser-known and original gem<\/li>\n\n\n\n<li>Very light! Like a little lump of coal <\/li>\n\n\n\n<li>Historically made famous by Queen Victoria of England as a mourning jewel<\/li>\n\n\n\n<li>Generally untreated<\/li>\n<\/ul>\n\n\n\n<p><strong>But be careful:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Quite fragile and brittle with a hardness of 2.5 to 4, protective jewelry should be used.<\/li>\n\n\n\n<li>No synthetics <\/li>\n\n\n\n<li>Less and less easy to find <\/li>\n\n\n\n<li>Beware of &#8220;French jet &#8220;, which is a glass imitation<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2048\" height=\"1536\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2024\/04\/Whitby-Jet-2.jpg\" alt=\"\" class=\"wp-image-4271\" title=\"Polished pink aventurine or strawberry quartz - Photo \u00a9 by Laur\u00e9line Colliard FGA\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/04\/Whitby-Jet-2.jpg 2048w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/04\/Whitby-Jet-2-600x450.jpg 600w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/04\/Whitby-Jet-2-300x225.jpg 300w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/04\/Whitby-Jet-2-1024x768.jpg 1024w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/04\/Whitby-Jet-2-768x576.jpg 768w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/04\/Whitby-Jet-2-1536x1152.jpg 1536w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/04\/Whitby-Jet-2-1200x900.jpg 1200w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/04\/Whitby-Jet-2-800x600.jpg 800w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/04\/Whitby-Jet-2-400x300.jpg 400w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/04\/Whitby-Jet-2-200x150.jpg 200w\" sizes=\"auto, (max-width: 2048px) 100vw, 2048px\" \/><figcaption class=\"wp-element-caption\">Whitby Jet Jewellery &#8211; Amanda Slater, CC BY-SA 2.0 DEED \n<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-67d7ebd99c41a38fa922f8f98050ff74\" id=\"N\u00b0:_Jaspe_rose\"><strong>N\u00b08: Sardonyx<\/strong><\/h2>\n\n\n\n<p>Sardonyx is a variety of onyx showing bands of black and white to brown. <\/p>\n\n\n\n<p><strong>Positives:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A two-tone stone in a variety of hues, with the possibility of bold blacks<\/li>\n\n\n\n<li>A little-known and original gem<\/li>\n\n\n\n<li>Good hardness, like all quartz, suitable for regular use<\/li>\n<\/ul>\n\n\n\n<p><strong>But be careful:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sellers do not necessarily specify the natural, treated or synthetic origin of their stone.<\/li>\n\n\n\n<li>No synthetic<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"750\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2023\/12\/96_file.png\" alt=\"Sardonyx blue red and white as flat stone on a neutral background to illustrate the sardonyx\" class=\"wp-image-207\" title=\"Flat pink mochaite jasper - Photo \u00a9 by Laur\u00e9line Colliard FGA\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/96_file.png 1000w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/96_file-600x450.png 600w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/96_file-768x576.png 768w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/96_file-300x225.png 300w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/96_file-800x600.png 800w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/96_file-400x300.png 400w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/96_file-200x150.png 200w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Flat stone sardonyx &#8211; Photo \u00a9 by Laur\u00e9line Colliard FGA <\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-5f9d8dbc386f8034f1cc6800c30b48b6\" id=\"N\u00b0:_Chiastolite\"><strong>N\u00b09: Obsidian<\/strong><\/h2>\n\n\n\n<p>Obsidian is a variety of natural glass and includes several sub-varieties that can show clear blacks, white flakes, patterns, iridescence or translucent browns.<\/p>\n\n\n\n<p><strong>Positives:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A variety of blacks, straightforward, tinged with blue or brown, opaque or with a glittery effect , depending on the variety.<\/li>\n\n\n\n<li>generally affordable<\/li>\n\n\n\n<li>Perfect for collectors<\/li>\n\n\n\n<li>Rarely treated<\/li>\n<\/ul>\n\n\n\n<p><strong>But be careful:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A medium hardness that requires a few precautions to avoid scratches, like all glass<\/li>\n\n\n\n<li>Many imitations<\/li>\n\n\n\n<li>No synthetic<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"960\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2024\/04\/obsidian-505332_1280.jpg\" alt=\"piece of black obsidian on white background to illustrate obsidian\" class=\"wp-image-3748\" title=\"Chiastolite as flat stone - Photo \u00a9 by Laur\u00e9line Colliard FGA\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/04\/obsidian-505332_1280.jpg 1280w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/04\/obsidian-505332_1280-600x450.jpg 600w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/04\/obsidian-505332_1280-300x225.jpg 300w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/04\/obsidian-505332_1280-1024x768.jpg 1024w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/04\/obsidian-505332_1280-768x576.jpg 768w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/04\/obsidian-505332_1280-1200x900.jpg 1200w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/04\/obsidian-505332_1280-800x600.jpg 800w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/04\/obsidian-505332_1280-400x300.jpg 400w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/04\/obsidian-505332_1280-200x150.jpg 200w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><figcaption class=\"wp-element-caption\">Piece of black obsidian &#8211; CC0<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-f932c5c4a2c9f75f83569f44262459d9\" id=\"Kunzite\">N\u00b010: Grossular<\/h2>\n\n\n\n<p><a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/grossular-properties-uses-and-virtues\/\">Grossular garnet<\/a>, often associated with hues ranging from apple green to golden yellow, is a garnet variety appreciated for its diversity of colors. It can show quite bold black tones, usually tinged with browns, greens or reds.<\/p>\n\n\n\n<p><strong>Positives:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>One of the little-known and original black semi-precious stones (gemstones).<\/li>\n\n\n\n<li>Good durability<\/li>\n\n\n\n<li>Black generally tinged with red, green or brown<\/li>\n\n\n\n<li>Very good <abbr class='c2c-text-hover' title='Ability of stone to withstand impacts and breakage'>tenacity<\/abbr> <\/li>\n<\/ul>\n\n\n\n<p><strong>But be careful:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>May be confused with similar black stones<\/li>\n\n\n\n<li>Possible imitations on the market<\/li>\n\n\n\n<li>Hard to find in jewelry<\/li>\n\n\n\n<li>No synthetic<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"436\" height=\"600\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2024\/09\/Grossular-210769.jpg\" alt=\"black grossular crystal with a green tint showing two perfectly geometrical shaped crystals\" class=\"wp-image-9359\" style=\"width:535px;height:auto\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Grossular-210769.jpg 436w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Grossular-210769-218x300.jpg 218w\" sizes=\"auto, (max-width: 436px) 100vw, 436px\" \/><figcaption class=\"wp-element-caption\">Rough grossular &#8211; Rob Lavinsky, CC-BY-SA-3.0<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-9782e64c26ed3ea69b4960c3ea4e5eab\" id=\"Labradorite\">N\u00b011: Titanite<\/h2>\n\n\n\n<p>Also known as Sphene, titanite is a rare crystal that can show black hues, often with an almost metallic adamantine sheen. <\/p>\n\n\n\n<p><strong>Positives:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A rather rare stone<\/li>\n\n\n\n<li>Perfect for collectors<\/li>\n\n\n\n<li>Clean, metallic blacks<\/li>\n\n\n\n<li>Rarely counterfeited<\/li>\n\n\n\n<li>More affordable in black than in green <\/li>\n<\/ul>\n\n\n\n<p><strong>But be careful:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Its rarity means a higher price<\/li>\n\n\n\n<li>Not easy to find <\/li>\n\n\n\n<li>Watch out for counterfeits!<\/li>\n\n\n\n<li>No synthetics<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1020\" height=\"951\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2024\/09\/Titanite_-_Millars_Mine_Tory_Hill_Haliburton_County_Ontario_Canada.jpg\" alt=\"\" class=\"wp-image-9361\" style=\"width:588px;height:auto\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Titanite_-_Millars_Mine_Tory_Hill_Haliburton_County_Ontario_Canada.jpg 1020w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Titanite_-_Millars_Mine_Tory_Hill_Haliburton_County_Ontario_Canada-300x280.jpg 300w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Titanite_-_Millars_Mine_Tory_Hill_Haliburton_County_Ontario_Canada-768x716.jpg 768w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Titanite_-_Millars_Mine_Tory_Hill_Haliburton_County_Ontario_Canada-600x559.jpg 600w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/><figcaption class=\"wp-element-caption\">Titanite &#8211; Kelly Nash, CC BY 3.0<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-d3de0bdfad0f3e51d41ee43c4471017e\" id=\"Agate\">N\u00b012: Jasper<\/h2>\n\n\n\n<p>Black jasper is a variety of quartz that can show strong black nuances.<\/p>\n\n\n\n<p><strong>Positives:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Unknown in this color<\/li>\n\n\n\n<li>Affordable<\/li>\n\n\n\n<li>Excellent hardness of 7<\/li>\n\n\n\n<li>very good <abbr class='c2c-text-hover' title='Ability of stone to withstand impacts and breakage'>tenacity<\/abbr><\/li>\n<\/ul>\n\n\n\n<p><strong>But be careful:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>No synthetics<\/li>\n\n\n\n<li>Watch out for counterfeits!<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"4000\" height=\"4000\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2024\/09\/Black_jasper_intaglio_portrait_of_a_Roman_lady_MET_DP111329.jpg\" alt=\"black jasper medallion with portrait of a roman woman\" class=\"wp-image-9364\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Black_jasper_intaglio_portrait_of_a_Roman_lady_MET_DP111329.jpg 4000w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Black_jasper_intaglio_portrait_of_a_Roman_lady_MET_DP111329-300x300.jpg 300w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Black_jasper_intaglio_portrait_of_a_Roman_lady_MET_DP111329-1024x1024.jpg 1024w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Black_jasper_intaglio_portrait_of_a_Roman_lady_MET_DP111329-150x150.jpg 150w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Black_jasper_intaglio_portrait_of_a_Roman_lady_MET_DP111329-768x768.jpg 768w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Black_jasper_intaglio_portrait_of_a_Roman_lady_MET_DP111329-1536x1536.jpg 1536w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Black_jasper_intaglio_portrait_of_a_Roman_lady_MET_DP111329-2048x2048.jpg 2048w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Black_jasper_intaglio_portrait_of_a_Roman_lady_MET_DP111329-600x600.jpg 600w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Black_jasper_intaglio_portrait_of_a_Roman_lady_MET_DP111329-120x120.jpg 120w\" sizes=\"auto, (max-width: 4000px) 100vw, 4000px\" \/><figcaption class=\"wp-element-caption\">Roman portrait in black jasper &#8211; Metropolitan Museum of Art, CC0<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-1e54848cfeb9dcdcff84a33c805e8ae3\" id=\"Spinelle\">N\u00b013: Spinel<\/h2>\n\n\n\n<p>Spinel can show pure , opaque shades of black.<\/p>\n\n\n\n<p><strong>Positives:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Strong, opaque shades<\/li>\n\n\n\n<li>Synthetic <a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/spinel-properties-uses-and-virtues\/\">spinels<\/a> come in a wide variety of colors and transparencies .<\/li>\n\n\n\n<li>A little-known stone<\/li>\n\n\n\n<li>Excellent durability against impact and scratches<\/li>\n\n\n\n<li>A stone that&#8217;s not afraid of water, and not much else in general<\/li>\n\n\n\n<li>Affordable, especially synthetics <\/li>\n<\/ul>\n\n\n\n<p><strong>But be careful:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Treatments not always mentioned by sellers<\/li>\n\n\n\n<li>Synthetics can be sold as natural<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"1000\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2023\/12\/88_file.png\" alt=\"rough black spinel polished on a neutral background held by gemmological tweezers to illustrate the spinel\" class=\"wp-image-165\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/88_file.png 750w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/88_file-450x600.png 450w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/88_file-225x300.png 225w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/88_file-600x800.png 600w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/88_file-300x400.png 300w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/88_file-150x200.png 150w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><figcaption class=\"wp-element-caption\">Polished black spinel &#8211; Photo \u00a9 by Laur\u00e9line Colliard FGA <\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-22a69d45d34267096249b55bca2e0fd9\" id=\"Rhodochrosite\">N\u00b014: Diopside<\/h2>\n\n\n\n<p>Diopside, although known in its green chromium variety, can show quite distinct shades of black. <\/p>\n\n\n\n<p>Positives:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Deep black color<\/li>\n\n\n\n<li>Use in fine jewelry creations<\/li>\n\n\n\n<li>Black <abbr class='c2c-text-hover' title='Clear line on the stone surface created by natural or synthesized inclusions'>cat&#8217;s eye<\/abbr> or star diopsides are also available.<\/li>\n\n\n\n<li>little known<\/li>\n<\/ul>\n\n\n\n<p>But be careful:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sometimes imitated by other green gems<\/li>\n\n\n\n<li>Less affordable than other stones in the list, but the black color remains affordable.<\/li>\n\n\n\n<li>A rather fragile stone that requires protective jewelry<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1560\" height=\"1704\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2024\/09\/Diopside_cabochon_Inde.jpg\" alt=\"jet-black diopside stone with a white asterism in the center \" class=\"wp-image-9382\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Diopside_cabochon_Inde.jpg 1560w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Diopside_cabochon_Inde-275x300.jpg 275w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Diopside_cabochon_Inde-937x1024.jpg 937w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Diopside_cabochon_Inde-768x839.jpg 768w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Diopside_cabochon_Inde-1406x1536.jpg 1406w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Diopside_cabochon_Inde-549x600.jpg 549w\" sizes=\"auto, (max-width: 1560px) 100vw, 1560px\" \/><figcaption class=\"wp-element-caption\">Star Diopside &#8211; Didier Descouens, CC BY-SA 3.0 <\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-ce2f09246607f1e1d6b3a62576b0b147\" id=\"Perle\">N\u00b015: Aventurine<\/h2>\n\n\n\n<p>Aventurine, or aventurine quartz, is a variety of quartz with inclusions that generally shows strong adventurence, i.e. a glittery effect. When black, it resembles a starry sky. <\/p>\n\n\n\n<p><strong>Positives:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A little-known stone<\/li>\n\n\n\n<li>Perfect for collectors<\/li>\n\n\n\n<li>Shades of black that can be blended with blue blue to create a deep starry sky, it can sometimes be called galaxy aventurine<\/li>\n\n\n\n<li>Excellent <abbr class='c2c-text-hover' title='Ability of stone to withstand impacts and breakage'>tenacity<\/abbr> <\/li>\n\n\n\n<li>It is also used in sculpture<\/li>\n\n\n\n<li>Still affordable<\/li>\n<\/ul>\n\n\n\n<p><strong>But be careful:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Numerous imitations <\/li>\n\n\n\n<li>A hardness of 6 to 6.5 on the <abbr class='c2c-text-hover' title='Scale used to describe the hardness (scratch resistance) of a mineral from the lowest hardness (1 - talc) to the highest (10 - diamond)'>Mohs scale<\/abbr> , which requires a few precautions to avoid scratches<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1080\" height=\"1350\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2024\/09\/black_Aventurine_Quartz.jpg\" alt=\"four black aventurine stones resembling a starry sky held in one hand\" class=\"wp-image-9373\" style=\"width:570px;height:auto\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/black_Aventurine_Quartz.jpg 1080w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/black_Aventurine_Quartz-240x300.jpg 240w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/black_Aventurine_Quartz-819x1024.jpg 819w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/black_Aventurine_Quartz-768x960.jpg 768w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/black_Aventurine_Quartz-480x600.jpg 480w\" sizes=\"auto, (max-width: 1080px) 100vw, 1080px\" \/><figcaption class=\"wp-element-caption\">Black aventurine &#8211; Sonatona gemstones, CC BY-SA 4.0 <\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-e32315c238e2b3e7909a22b5e63d6da7\" id=\"Topaze\">N\u00b016: Agate<\/h2>\n\n\n\n<p>Agate is a family of polycrystalline quartz and chalcedony. It can display a wide variety of hues and patterns , including black. <\/p>\n\n\n\n<p><strong>Positives:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Brown-tinted or bold black colors<\/li>\n\n\n\n<li>A little-known stone in this shade<\/li>\n\n\n\n<li>Good scratch resistance<\/li>\n\n\n\n<li>Excellent <abbr class='c2c-text-hover' title='Ability of stone to withstand impacts and breakage'>tenacity<\/abbr><\/li>\n\n\n\n<li>Affordable<\/li>\n<\/ul>\n\n\n\n<p><strong>But be careful:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Many chalcedonies are tinted and the treatments are not mentioned by the sellers.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"929\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2024\/09\/Bead_with_frog_in_black_agate_MET_sp74513303b-1024x929.jpg\" alt=\"small frog cut in black agate with a white band \" class=\"wp-image-9376\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Bead_with_frog_in_black_agate_MET_sp74513303b-1024x929.jpg 1024w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Bead_with_frog_in_black_agate_MET_sp74513303b-300x272.jpg 300w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Bead_with_frog_in_black_agate_MET_sp74513303b-768x697.jpg 768w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Bead_with_frog_in_black_agate_MET_sp74513303b-1536x1393.jpg 1536w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Bead_with_frog_in_black_agate_MET_sp74513303b-600x544.jpg 600w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Bead_with_frog_in_black_agate_MET_sp74513303b.jpg 1746w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Frog charm in black agate &#8211; Metropolitan Museum of Art, CC0<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-ff8ef0ebfb5b92bf21748ab8278e9faf\" id=\"Rhodonite\">N\u00b017: Moissanite<\/h2>\n\n\n\n<p>Moissanite is a synthetic stone with only a few natural specimens. The vast majority are created in laboratories and come in a wide variety of hues, including black. <\/p>\n\n\n\n<p><strong>Positives:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>More brilliance than diamond<\/li>\n\n\n\n<li>An exceptional hardness of 9.5, second only to diamond and its perfect 10<\/li>\n\n\n\n<li>A wide variety of shades, including black , which can be opaque or translucent to transparent<\/li>\n\n\n\n<li>Generally affordable (depending on brand)<\/li>\n<\/ul>\n\n\n\n<p><strong>But be careful:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Moissanite is often over-marketed , making it more expensive than it is.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-5900c831bb5c798da14b41cba0fc4661\" id=\"Jade_Jad\u00e9ite\">N\u00b018: Onyx<\/h2>\n\n\n\n<p>Onyx is a variety of quartz that can be perfectly black or zoned with beautiful bands or patterns. It can also be blue or even brown in the case of sardonyx. <\/p>\n\n\n\n<p><strong>Positives:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A stone known for its jet-black color<\/li>\n\n\n\n<li>Affordable<\/li>\n\n\n\n<li>Easy to find<\/li>\n\n\n\n<li>Very good <abbr class='c2c-text-hover' title='Ability of stone to withstand impacts and breakage'>tenacity<\/abbr><\/li>\n\n\n\n<li>Good hardness for everyday use<\/li>\n<\/ul>\n\n\n\n<p><strong>But be careful:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A multitude of fakes and imitations on the market<\/li>\n\n\n\n<li>The vast majority of black onyx on the market are chalcedony treated with acid and burnt sugar<\/li>\n\n\n\n<li>No synthetics<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"750\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2023\/12\/130_file.png\" alt=\"onyx black stone on a neutral background to illustrate onyx\" class=\"wp-image-252\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/130_file.png 1000w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/130_file-600x450.png 600w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/130_file-768x576.png 768w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/130_file-300x225.png 300w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/130_file-800x600.png 800w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/130_file-400x300.png 400w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/12\/130_file-200x150.png 200w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Polished onyx stone &#8211; Photo \u00a9 by Laur\u00e9line Colliard FGA <\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-c6f322c142cdc68967613a5ad4f990c1\" id=\"Diamant\">N\u00b019: Diamond<\/h2>\n\n\n\n<p>Diamonds can also show black hues, usually opaque. They may be more transparent in the case of synthetic diamonds. <\/p>\n\n\n\n<p><strong>Positives:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The hardest stone in the world, virtually impossible to scratch or chip<\/li>\n\n\n\n<li>Not to be confused with carbonados<\/li>\n\n\n\n<li>Excellent resistance to acids and chemicals<\/li>\n\n\n\n<li>Opaque black to grey hues on natural diamonds and more varied hues on synthetic diamonds<\/li>\n\n\n\n<li>Less sought-after than the other colors, so a little more affordable<\/li>\n\n\n\n<li>Synthetic diamonds are affordable compared to natural ones and offer a multitude of hues with perfect purity and no risk of armed conflict or human suffering.<\/li>\n\n\n\n<li>Increasingly controlled labels (even if they still leave something to be desired)<\/li>\n<\/ul>\n\n\n\n<p><strong>But be careful:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Diamond is relatively sensitive to shocks and high temperatures, and can be damaged.<\/li>\n\n\n\n<li>A multitude of fakes and imitations on the market due to its popularity<\/li>\n\n\n\n<li>A market controlled almost entirely by the big players in the luxury sector, who fluctuate prices according to their desires and redouble their marketing efforts to ensure that everyone dreams of owning one.<\/li>\n\n\n\n<li>Extremely expensive as natural stones<\/li>\n\n\n\n<li>Serious human and ecological problems along much of the production chain<\/li>\n\n\n\n<li>Synthetics are generally much more expensive than other stones.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1080\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2023\/10\/Black_Diamond-1.jpeg\" alt=\"opaque and perfectly black cut black diamond\" class=\"wp-image-8788\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/10\/Black_Diamond-1.jpeg 1920w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/10\/Black_Diamond-1-300x169.jpeg 300w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/10\/Black_Diamond-1-1024x576.jpeg 1024w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/10\/Black_Diamond-1-768x432.jpeg 768w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/10\/Black_Diamond-1-1536x864.jpeg 1536w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/10\/Black_Diamond-1-1200x675.jpeg 1200w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2023\/10\/Black_Diamond-1-600x338.jpeg 600w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><figcaption class=\"wp-element-caption\">Natural <a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/black-diamond-and-carbonado-properties-uses-and-virtues\/\">Black Diamond<\/a> &#8220;shaan-e-kolkata&#8221; &#8211; Trishtha, CC BY-SA 4.0<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-bec2c1e9ebeeedcbf9761505e9ae9f86\" id=\"Scapolite\">N\u00b020: Scapolite<\/h2>\n\n\n\n<p>Black scapolite , although less well known, has fairly pure hues.<\/p>\n\n\n\n<p><strong>Positives:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A little-known stone<\/li>\n\n\n\n<li>Clean shades<\/li>\n\n\n\n<li>A good hardness of 6<\/li>\n\n\n\n<li>Excellent water resistance<\/li>\n\n\n\n<li>Available as <abbr class='c2c-text-hover' title='Clear line on the stone surface created by natural or synthesized inclusions'>cat&#8217;s eye<\/abbr><\/li>\n<\/ul>\n\n\n\n<p><strong>But be careful:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Few synthetics due to current lack of popularity (lack of profitability for laboratories)<\/li>\n\n\n\n<li>Some fragility to shocks<\/li>\n\n\n\n<li>Its lack of popularity makes it rare in jewelry and therefore relatively expensive.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"4032\" height=\"3024\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2024\/09\/diopside-exception.jpg\" alt=\"cabochon-cut stone in black cat' s eye scapolite\" class=\"wp-image-9371\" style=\"width:938px;height:auto\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/diopside-exception.jpg 4032w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/diopside-exception-300x225.jpg 300w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/diopside-exception-1024x768.jpg 1024w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/diopside-exception-768x576.jpg 768w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/diopside-exception-1536x1152.jpg 1536w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/diopside-exception-2048x1536.jpg 2048w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/diopside-exception-600x450.jpg 600w\" sizes=\"auto, (max-width: 4032px) 100vw, 4032px\" \/><figcaption class=\"wp-element-caption\"><abbr class='c2c-text-hover' title='Clear line on the stone surface created by natural or synthesized inclusions'>Cat&#8217;s eye<\/abbr> scapolite &#8211; Photo\u00a9 by Laur\u00e9line Colliard FGA<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-12fd3355e0edf05596aeabfc2da0beaa\" id=\"Pezzotaite\">N\u00b021: Moonstone<\/h2>\n\n\n\n<p><a href=\"https:\/\/www.cola5677.odns.fr\/en\/gem-encyclopedia\/moonstone-properties-uses-and-virtues\/\" target=\"_blank\" rel=\"noopener\"> Moonstone<\/a>, known for its opalescent reflections and shades ranging from milky white to silvery blue, is also available in black! <\/p>\n\n\n\n<p><strong>Positives:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Shades range from opaque black mixed with white to translucent , slightly irridescent black .<\/li>\n\n\n\n<li>It&#8217;s possible to find some nice-sized specimens, especially in a ball shape.<\/li>\n\n\n\n<li>Fairly durable<\/li>\n\n\n\n<li>Affordable<\/li>\n<\/ul>\n\n\n\n<p><strong>But be careful:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>With a hardness of 6.5 on the <abbr class='c2c-text-hover' title='Scale used to describe the hardness (scratch resistance) of a mineral from the lowest hardness (1 - talc) to the highest (10 - diamond)'>Mohs scale<\/abbr>, moonstone can be scratched or broken. you have to be careful<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Translucent <a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/moonstone-properties-uses-and-virtues\/\">moonstones<\/a> can be expensive<\/li>\n\n\n\n<li>Watch out for imitations<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-8c74d5ca363d98fa7f73f7511e88bed5\" id=\"Opale\">N\u00b022: Opal<\/h2>\n\n\n\n<p>Also little known, common opal can be purple! It can also show dendritic forms, i.e. resembling small branches like <a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/agate-moss-properties-uses-and-virtues\/\">moss agate<\/a>.<\/p>\n\n\n\n<p><strong>Positives:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Generally soft and varied colors<\/li>\n\n\n\n<li>Common purple dendritic <a href=\"https:\/\/www.gemgazette.com\/en\/gem-encyclopedia\/opal-properties-uses-and-virtues\/\">opals<\/a> (with inclusions in the form of small branches) are also available.<\/li>\n\n\n\n<li>A good hardness of 6<\/li>\n\n\n\n<li>Affordable<\/li>\n<\/ul>\n\n\n\n<p><strong>But be careful:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Can be imitated with agate or jasper<\/li>\n\n\n\n<li>Generally fragile and sensitive to shocks, chemicals and high temperatures. it&#8217;s one of my top perfume-hating stones<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"538\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2024\/03\/Black_opal_Stayish_Mine_Wollo_Province_Ethiopia_6-1024x538.jpg\" alt=\"Ethiopian black opal showing very bright but disappearing lights to illustrate Ethiopian black opal\" class=\"wp-image-3026\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/03\/Black_opal_Stayish_Mine_Wollo_Province_Ethiopia_6-1024x538.jpg 1024w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/03\/Black_opal_Stayish_Mine_Wollo_Province_Ethiopia_6-600x315.jpg 600w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/03\/Black_opal_Stayish_Mine_Wollo_Province_Ethiopia_6-300x158.jpg 300w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/03\/Black_opal_Stayish_Mine_Wollo_Province_Ethiopia_6-768x403.jpg 768w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/03\/Black_opal_Stayish_Mine_Wollo_Province_Ethiopia_6-1200x630.jpg 1200w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/03\/Black_opal_Stayish_Mine_Wollo_Province_Ethiopia_6.jpg 1462w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Ethiopian black opal &#8211; James St. Clair John, CC BY 2.0  <\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-e5effe40ea6f9a48409530f44813931c\" id=\"N\u00b0:_Opale\">N\u00b023: Tahiti Pearl<\/h2>\n\n\n\n<p>The Tahitian pearl is a timeless classic that also comes in black!<\/p>\n\n\n\n<p><strong>Positives:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Intense blacks to metallic greys<\/li>\n\n\n\n<li>An unparalleled history and reputation<\/li>\n\n\n\n<li>For glamorous evenings<\/li>\n\n\n\n<li>Or for every day, but be very careful!<\/li>\n\n\n\n<li>I&#8217;ve written a guide to pearl necklaces and everything you need to know about them.<\/li>\n<\/ul>\n\n\n\n<p><strong>But be careful:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>When it comes to animal welfare&#8230;not good<\/li>\n\n\n\n<li>Overfishing has eliminated almost all the oysters and crustaceans that are the source of natural wild <a href=\"https:\/\/www.cola5677.odns.fr\/en\/collection-mohs-1-to-3-highly-protected-jewellery-and-collection\/pearl-properties-uses-and-virtues\/\" target=\"_blank\" rel=\"noopener\">pearls<\/a>.<\/li>\n\n\n\n<li>Very fragile, damaged by everything: scratches, shocks, products, heat, perfume, etc.<\/li>\n\n\n\n<li>There are so many fakes and imitations on the market, it&#8217;s hard to keep track.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2024\/09\/Black_pearl_and_his_shell-1024x768.jpg\" alt=\"natural opaque black pearl in a pearly shell \" class=\"wp-image-9390\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Black_pearl_and_his_shell-1024x768.jpg 1024w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Black_pearl_and_his_shell-300x225.jpg 300w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Black_pearl_and_his_shell-768x576.jpg 768w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Black_pearl_and_his_shell-1536x1151.jpg 1536w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Black_pearl_and_his_shell-2048x1535.jpg 2048w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Black_pearl_and_his_shell-600x450.jpg 600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Natural black pearl &#8211; Brocken Inaglory, CC BY-SA 3.0 <\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color wp-elements-ef62ec8544428b4910353a4b171cc8bb\" id=\"N\u00b0:_Verre\">N\u00b024: Hematite<\/h2>\n\n\n\n<p>Hematite is a naturally black to metallic stone, although it can appear red in places. It is the most abundant source of iron. <\/p>\n\n\n\n<p><strong>Positives:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A choice of pure, intense black or metallic grey<\/li>\n\n\n\n<li>Little known, especially in jewelry<\/li>\n\n\n\n<li>Often used in sculptures <\/li>\n\n\n\n<li>Very affordable<\/li>\n<\/ul>\n\n\n\n<p><strong>But be careful:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>With a hardness of 5 to 6.5 on the <abbr class='c2c-text-hover' title='Scale used to describe the hardness (scratch resistance) of a mineral from the lowest hardness (1 - talc) to the highest (10 - diamond)'>Mohs scale<\/abbr>, hematite can break or scratch more easily than harder stones, so care should be taken to protect it.<\/li>\n\n\n\n<li>Beware of imitations, especially hematin<\/li>\n\n\n\n<li>Watch out for rust!<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"3024\" height=\"4032\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2024\/05\/IMG_1262-rotated.jpg\" alt=\"Shaped piece of hematite that looks like a multitude of small, thin, round, dark-gray trays, metallic effect, interlocked in all directions. On display in the museum with a sign \" class=\"wp-image-4466\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/05\/IMG_1262-rotated.jpg 3024w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/05\/IMG_1262-225x300.jpg 225w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/05\/IMG_1262-768x1024.jpg 768w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/05\/IMG_1262-1152x1536.jpg 1152w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/05\/IMG_1262-1536x2048.jpg 1536w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/05\/IMG_1262-900x1200.jpg 900w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/05\/IMG_1262-600x800.jpg 600w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/05\/IMG_1262-450x600.jpg 450w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/05\/IMG_1262-300x400.jpg 300w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/05\/IMG_1262-150x200.jpg 150w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/05\/IMG_1262-1200x1600.jpg 1200w\" sizes=\"auto, (max-width: 3024px) 100vw, 3024px\" \/><figcaption class=\"wp-element-caption\">Hematite &#8211; Photo\u00a9 by Laur\u00e9line Colliard, galerie de min\u00e9ralogie du jardin des plantes<\/figcaption><\/figure>\n\n\n\n<p><em>So, which stone for this mystical color? It&#8217;s my favorite!  <\/em><\/p>\n\n\n\n<p class=\"has-text-align-center has-nv-site-bg-color has-cool-to-warm-spectrum-gradient-background has-text-color has-background has-link-color has-large-font-size wp-elements-700b8229ea888367cc45abf5bcc173c3\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\">Pin it ! <\/p>\n\n\n      \n\t\t\t<div class=\"uagb-icon-wrapper uagb-block-a8166a1c      \"\n\t\t\tstyle=\"\" >\n\t\t\t\t\t\t\t\t\t<span class=\"uagb-svg-wrapper\" \n\t\t\t\t\t aria-label=\"arrow-turn-down\"\t\t\t\t\ttabindex=\"0\">\t\t\n\t\t\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox= \"0 0 384 512\" role=\"graphics-symbol\" aria-hidden=\"false\" aria-label=\"\"><path d=\"M342.6 374.6l-128 128C208.4 508.9 200.2 512 191.1 512s-16.38-3.125-22.63-9.375l-127.1-128c-12.5-12.5-12.5-32.75 0-45.25s32.75-12.5 45.25 0L160 402.8V80C160 71.19 152.8 64 144 64H32C14.33 64 0 49.69 0 32s14.33-32 32-32h112C188.1 0 224 35.88 224 80v322.8l73.37-73.38c12.5-12.5 32.75-12.5 45.25 0S355.1 362.1 342.6 374.6z\"><\/path><\/svg>\n\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1500\" src=\"https:\/\/www.cola5677.odns.fr\/wp-content\/uploads\/2024\/09\/Pierres-Noires-EN.png\" alt=\"a banner with the 24 black stones described in the article\" class=\"wp-image-9410\" style=\"width:662px;height:auto\" srcset=\"https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Pierres-Noires-EN.png 1000w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Pierres-Noires-EN-200x300.png 200w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Pierres-Noires-EN-683x1024.png 683w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Pierres-Noires-EN-768x1152.png 768w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Pierres-Noires-EN-600x900.png 600w, https:\/\/www.gemgazette.com\/wp-content\/uploads\/2024\/09\/Pierres-Noires-EN-400x600.png 400w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n<\/div>\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>It&#8217;s finally time for black aficionados! If you&#8217;re tired of onyx or obsidian, here&#8217;s a short list you&#8217;ll find very useful! Which black gemstone will charm you? Black Gemstones Black stones by name: N\u00b01: Sapphire Black sapphire is a variety of corundum showing shades of deep black, often tinged with brown or blue. Positives: But&hellip;&nbsp;<a href=\"https:\/\/www.gemgazette.com\/en\/style-en\/black-gemstone-24-obscure-gems\/\" class=\"\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">Black gemstone: 24 obscure gems!<\/span><\/a><\/p>\n","protected":false},"author":244091248,"featured_media":9410,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"_uag_custom_page_level_css":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","fifu_image_url":"","fifu_image_alt":"","two_page_speed":[],"footnotes":""},"categories":[1742],"tags":[],"table_tags":[],"class_list":["post-9405","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-style-en"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.9 - aioseo.com -->\n\t<meta name=\"description\" content=\"It&#039;s finally time for black aficionados! 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If you&#039;re tired of onyx or obsidian, here&#039;s a short list you&#039;ll find very useful! Which black gemstone will charm you? 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Colliard FGA","author_link":"https:\/\/www.gemgazette.com\/en\/author\/laurelinecolliardfga\/"},"uagb_comment_info":0,"uagb_excerpt":"It&#8217;s finally time for black aficionados! If you&#8217;re tired of onyx or obsidian, here&#8217;s a short list you&#8217;ll find very useful! Which black gemstone will charm you? Black Gemstones Black stones by name: N\u00b01: Sapphire Black sapphire is a variety of corundum showing shades of deep black, often tinged with brown or blue. Positives: But&hellip;&nbsp;Read&hellip;","_links":{"self":[{"href":"https:\/\/www.gemgazette.com\/en\/wp-json\/wp\/v2\/posts\/9405","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gemgazette.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gemgazette.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gemgazette.com\/en\/wp-json\/wp\/v2\/users\/244091248"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gemgazette.com\/en\/wp-json\/wp\/v2\/comments?post=9405"}],"version-history":[{"count":8,"href":"https:\/\/www.gemgazette.com\/en\/wp-json\/wp\/v2\/posts\/9405\/revisions"}],"predecessor-version":[{"id":10000,"href":"https:\/\/www.gemgazette.com\/en\/wp-json\/wp\/v2\/posts\/9405\/revisions\/10000"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gemgazette.com\/en\/wp-json\/wp\/v2\/media\/9410"}],"wp:attachment":[{"href":"https:\/\/www.gemgazette.com\/en\/wp-json\/wp\/v2\/media?parent=9405"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gemgazette.com\/en\/wp-json\/wp\/v2\/categories?post=9405"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gemgazette.com\/en\/wp-json\/wp\/v2\/tags?post=9405"},{"taxonomy":"table_tags","embeddable":true,"href":"https:\/\/www.gemgazette.com\/en\/wp-json\/wp\/v2\/table_tags?post=9405"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}