{"id":40279,"date":"2026-08-26T10:28:28","date_gmt":"2026-08-26T02:28:28","guid":{"rendered":"https:\/\/goearthward.com\/?post_type=gemstone&#038;p=40279"},"modified":"2026-06-24T10:59:59","modified_gmt":"2026-06-24T02:59:59","slug":"sardonyx-meaning","status":"publish","type":"gemstone","link":"https:\/\/goearthward.com\/fr\/gemstone\/sardonyx-meaning\/","title":{"rendered":"Sardonyx Meaning: Healing Properties &#038; Uses"},"content":{"rendered":"<div class=\"gemstone-page\">\n<div class=\"gemstone-main\">\n<h1>Sardonyx Meaning: Healing Properties &amp; Uses<\/h1>\n<div class=\"subtitle\">Banded chalcedony of brown and white \u2014 strength, courage, and lasting happiness<\/div>\n<blockquote class=\"quick-answer\"><p>Sardonyx is a banded chalcedony \u2014 layers of brownish-red sard alternating with white onyx. It&#8217;s famous for cameo carving, where the two colors are cut in relief, and it&#8217;s one of the August birthstones. In crystal practice it&#8217;s tied to strength, courage, and lasting happiness. If you&#8217;re drawn to its warm, earthy bands, this guide covers what sardonyx is, its long cameo history, and how to care for it. Crystal meanings reflect tradition and personal practice, not medical advice.<\/p><\/blockquote>\n<h2>What Is Sardonyx Meaning?<\/h2>\n<p>At its simplest, sardonyx means strength and courage. With its warm, brown-and-white bands, it reads as steady and enduring \u2014 a stone people reach for motivation, confidence, or a grounded sense of lasting happiness. Its name combines &#8220;sard&#8221; (the brownish-red layer) and &#8220;onyx&#8221; (the white layer), describing exactly what it looks like.<\/p>\n<p>For a lot of people that&#8217;s the whole appeal: one banded piece, one intention, one small daily ritual. You don&#8217;t need to believe anything mystical to benefit \u2014 the value often comes from the act of choosing the stone and letting its warm bands pull your attention to a steadier, more confident frame of mind. In that sense sardonyx is a visual cue you train yourself to return to.<\/p>\n<h2>Sardonyx Meaning and Symbolism<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"1536\" height=\"864\" src=\"https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-overview.webp\" class=\"wp-image-40272\" alt=\"Sardonyx meaning and symbolism visual guide\" title=\"\" srcset=\"https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-overview.webp 1536w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-overview-400x225.webp 400w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-overview-1300x731.webp 1300w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-overview-768x432.webp 768w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-overview-430x242.webp 430w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-overview-700x394.webp 700w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-overview-150x84.webp 150w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\" \/><\/p>\n<p>Sardonyx is a variety of chalcedony \u2014 microcrystalline quartz (SiO\u2082) \u2014 defined by its flat, parallel bands of two colors: brownish-red <em>sard<\/em> and white <em>onyx<\/em>. The name is simply a joining of the two layer names. That two-tone banding is what made sardonyx the favorite material for cameo carving \u2014 a skilled cutter could carve through the brown layer and leave the white as a contrasting background, creating a portrait or scene in relief.<\/p>\n<p>The stone has one of the longest and proudest histories of any gem. Ancient Romans carved sardonyx into signet rings and cameos \u2014 some of the finest ancient cameos, including imperial portraits, are sardonyx. The tradition continued through the Renaissance, when master carvers in Italy produced exquisite sardonyx cameos for royalty and the church. The best historical material came from India, though modern sources include Brazil, Uruguay, and Madagascar. Sardonyx is also one of the modern August birthstones, alongside peridot and spinel.<\/p>\n<p>Today the common threads are consistent: <strong>strength, courage, and lasting happiness<\/strong>. You&#8217;ll see sardonyx described as a stone for confidence, motivation, and a steady, enduring sense of well-being. How much of that you experience personally is up to you, but the warm symbolism fits its look. To explore more stones, browse the full <a href=\"\/fr\/gemstones\/\">Crystal Guide<\/a>.<\/p>\n<h2>Sardonyx Properties<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"1536\" height=\"864\" src=\"https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-properties.webp\" class=\"wp-image-40274\" alt=\"Sardonyx brown and white banded chalcedony close-up\" title=\"\" srcset=\"https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-properties.webp 1536w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-properties-400x225.webp 400w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-properties-1300x731.webp 1300w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-properties-768x432.webp 768w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-properties-430x242.webp 430w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-properties-700x394.webp 700w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-properties-150x84.webp 150w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\" \/><\/p>\n<h3>The Science<\/h3>\n<p>Sardonyx is chalcedony \u2014 microcrystalline quartz, SiO\u2082 \u2014 with flat, parallel bands of two colors. The brownish-red layers are &#8220;sard&#8221; (colored by iron oxide), and the white layers are &#8220;onyx&#8221; (pure, colorless chalcedony). It forms in the trigonal crystal system and rates 6.5\u20137 on the Mohs scale, hard enough for everyday wear. The banding is structural \u2014 the two colors formed as the silica deposited in alternating layers, not painted on. Major sources include India (the historic source for cameos), Brazil, Uruguay, Germany (Idar-Oberstein), and Madagascar. None of this is mystical \u2014 it&#8217;s mineralogy, and the two-tone bands are a natural growth record.<\/p>\n<h3>Traditional Meaning<\/h3>\n<p>Tradition ties sardonyx to strength, courage, and lasting happiness. It&#8217;s linked to the root and sacral centers and is often described as a stone of confidence and motivation \u2014 many believe it supports willpower, courage, and a steady, grounded sense of well-being. Across ancient Rome and the Renaissance it was carried as a protective talisman and a token of strength. Its August birthstone status adds an association with the warmth of late summer. These associations come from spiritual tradition and personal practice rather than clinical study.<\/p>\n<h3>Mindfulness &amp; Psychology<\/h3>\n<p>From a psychological angle, sardonyx works as a warm, grounding focal cue \u2014 something brown-and-white to hold when you want confidence or motivation. In color psychology, warm browns read as grounded and steady, and the act of carrying a piece and pairing it with an intention (stay strong today) turns it into a small cue you keep returning to. Its cameo-carving heritage also makes it a cue for craft and patience \u2014 a reminder that beauty takes time and steady work. These effects come from tradition and personal practice, not clinical research. Crystals complement \u2014 but never replace \u2014 professional care.<\/p>\n<h2>Sardonyx Benefits<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"1536\" height=\"864\" src=\"https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-benefits.webp\" class=\"wp-image-40275\" alt=\"Sardonyx jewelry benefits for strength and courage\" title=\"\" srcset=\"https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-benefits.webp 1536w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-benefits-400x225.webp 400w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-benefits-1300x731.webp 1300w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-benefits-768x432.webp 768w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-benefits-430x242.webp 430w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-benefits-700x394.webp 700w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-benefits-150x84.webp 150w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\" \/><\/p>\n<p>People who work with sardonyx usually describe it in terms of <strong>strength, courage, and happiness<\/strong>, not dramatic effects. It tends to show up as a steadier, more confident mood. Here are a few of the benefits people mention most often:<\/p>\n<div class=\"benefits-grid\">\n<div class=\"benefit-card\">\n<h3>Steady strength<\/h3>\n<p>Its warm, earthy bands read as enduring; many keep it nearby when they want a steady sense of strength.<\/p>\n<\/div>\n<div class=\"benefit-card\">\n<h3>Courage and confidence<\/h3>\n<p>Tied to the root, some carry it for courage and motivation through demanding stretches.<\/p>\n<\/div>\n<div class=\"benefit-card\">\n<h3>Lasting happiness<\/h3>\n<p>Long associated with a steady sense of well-being \u2014 a warm, grounding reminder to stay positive.<\/p>\n<\/div>\n<div class=\"benefit-card\">\n<h3>A piece of history<\/h3>\n<p>Its cameo-carving heritage gives each piece a sense of craft and ancient tradition.<\/p>\n<\/div>\n<\/div>\n<p>The pattern underneath all of these is the same: the stone holds meaning through the intention you bring, not through any effect on its own. If you&#8217;re exploring stones for specific needs, see our guide to <a href=\"\/fr\/crystals-for-anxiety\/\">crystals for anxiety<\/a>.<\/p>\n<h2>Sardonyx Chakra, Zodiac, and Element Associations<\/h2>\n<p>In traditional systems, sardonyx is most often linked to the <strong>root<\/strong> et <strong>sacral<\/strong> centers \u2014 the areas tied to grounding, willpower, and personal strength. It&#8217;s one of the modern birthstones for <strong>August<\/strong>, and it&#8217;s commonly paired with <strong>Aries<\/strong> et <strong>Leo<\/strong>. Its element is <strong>Earth<\/strong>. For related stones, see <a href=\"\/fr\/root-chakra-crystals\/\">root chakra crystals<\/a>.<\/p>\n<p>These are correspondences built up through tradition, not rules carved in stone. If your own sense of sardonyx points somewhere else \u2014 a different chakra, a different element \u2014 that&#8217;s completely fine. Many people work with stones intuitively, following what feels right rather than a textbook chart, and there&#8217;s a long history of practitioners doing exactly that.<\/p>\n<h2>How to Use Sardonyx<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"1536\" height=\"864\" src=\"https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-how-to-use.webp\" class=\"wp-image-40277\" alt=\"Sardonyx used for strength and courage\" title=\"\" srcset=\"https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-how-to-use.webp 1536w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-how-to-use-400x225.webp 400w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-how-to-use-1300x731.webp 1300w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-how-to-use-768x432.webp 768w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-how-to-use-430x242.webp 430w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-how-to-use-700x394.webp 700w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-how-to-use-150x84.webp 150w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\" \/><\/p>\n<p>Sardonyx is a hard quartz (Mohs 6.5\u20137), so it takes daily wear well. The key is consistency: a piece you actually see and touch every day does far more than one stored away.<\/p>\n<p><strong>Wear it.<\/strong> A cameo pendant, cabochon ring, or beaded bracelet keeps the warm bands with you. Pair one piece with a specific intention \u2014 &#8220;stay strong,&#8221; &#8220;stay confident.&#8221;<\/p>\n<p><strong>Meditate with it.<\/strong> Hold a tumbled piece in your palm or rest it at your root while you sit. Even a few minutes of calm focus counts; the goal is presence, not duration.<\/p>\n<p><strong>Keep it on a desk.<\/strong> A polished sphere or cameo carving adds a warm, grounding presence to a workspace.<\/p>\n<p><strong>Carry a tumbled stone.<\/strong> A smooth piece in a pocket is a discreet touchstone for a moment of strength.<\/p>\n<h3>Which Sardonyx Form Is Right for You?<\/h3>\n<div class=\"forms-gallery is-single\">\n<figure><img loading=\"lazy\" decoding=\"async\" width=\"1536\" height=\"864\" src=\"https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-form-bracelet.webp\" class=\"wp-image-40278\" alt=\"Sardonyx cabochon ring worn for daily use\" title=\"\" srcset=\"https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-form-bracelet.webp 1536w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-form-bracelet-400x225.webp 400w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-form-bracelet-1300x731.webp 1300w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-form-bracelet-768x432.webp 768w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-form-bracelet-430x242.webp 430w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-form-bracelet-700x394.webp 700w, https:\/\/goearthward.com\/wp-content\/uploads\/2026\/06\/sardonyx-form-bracelet-150x84.webp 150w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\" \/><figcaption>Cabochon ring<\/figcaption><\/figure>\n<\/div>\n<table class=\"forms-table\">\n<tr>\n<th>Form<\/th>\n<th>Best for<\/th>\n<th>Choose it if<\/th>\n<\/tr>\n<tr>\n<td>Cameo pendant<\/td>\n<td>Daily wearing, collectors<\/td>\n<td>You want a carved relief piece in the old sardonyx tradition<\/td>\n<\/tr>\n<tr>\n<td>Cabochon ring<\/td>\n<td>Daily wearing<\/td>\n<td>You want a smooth domed cut showing the brown-white bands<\/td>\n<\/tr>\n<tr>\n<td>Beaded bracelet<\/td>\n<td>Daily wearing<\/td>\n<td>You want a wearable row of warm, banded stones<\/td>\n<\/tr>\n<tr>\n<td>Tumbled stone<\/td>\n<td>Pocket or meditation<\/td>\n<td>You want a smooth, affordable piece to hold or carry<\/td>\n<\/tr>\n<tr>\n<td>Sphere<\/td>\n<td>Desk, display<\/td>\n<td>You want a polished focal orb with the banded pattern<\/td>\n<\/tr>\n<tr>\n<td>Intaglio seal<\/td>\n<td>Collectors, display<\/td>\n<td>You want a carved signet in the ancient Roman tradition<\/td>\n<\/tr>\n<\/table>\n<h2>How to Tell Real Sardonyx from Look-Alikes<\/h2>\n<p>Because sardonyx is widely available, outright fakes are less common than with rarer gems \u2014 but dyed stones and resin copies do appear:<\/p>\n<ul>\n<li><strong>Natural banding.<\/strong> Genuine sardonyx has flat, parallel bands with natural variation in width and color depth. Perfectly uniform bands may be dyed agate or resin.<\/li>\n<li><strong>Color depth.<\/strong> The brown-red sard layers should have depth \u2014 the color sits within the stone, not on the surface. Dyed stones often have color pooling in cracks.<\/li>\n<li><strong>Hardness.<\/strong> At Mohs 6.5\u20137, real chalcedony scratches glass. Resin or plastic is softer.<\/li>\n<li><strong>Cameo carving.<\/strong> If buying a cameo, look for fine, detailed carving \u2014 modern resin copies are often too smooth and lack the crisp detail of hand-cut sardonyx.<\/li>\n<li><strong>Price and source.<\/strong> Natural sardonyx is affordable. Buy from a seller who states whether it&#8217;s natural or dyed.<\/li>\n<\/ul>\n<p>For everyday sardonyx, a reputable seller and natural-looking bands are usually enough.<\/p>\n<h2>How to Cleanse and Care for Sardonyx<\/h2>\n<p>Sardonyx is a hard, stable quartz (Mohs 6.5\u20137), so it&#8217;s easy to care for:<\/p>\n<ul>\n<li><strong>Water.<\/strong> A brief rinse under cool water is fine. Avoid long salt-water soaks, especially with metal settings.<\/li>\n<li><strong>Sunlight.<\/strong> The color is stable, so sun cleansing is safe. Some dyed stones may fade \u2014 natural sardonyx won&#8217;t.<\/li>\n<li><strong>Moonlight.<\/strong> A night under the moon is a popular gentle method.<\/li>\n<li><strong>Smoke or sound.<\/strong> Passing it through sage or palo santo smoke, or using a singing bowl nearby, is a no-contact option.<\/li>\n<\/ul>\n<p>One practical note: store sardonyx away from harder stones that could scratch it (it&#8217;s only Mohs 6.5\u20137), and avoid harsh chemical cleaners. For the full routine, see our <a href=\"\/fr\/blog\/how-to-cleanse-crystals\/\">guide to cleansing crystals<\/a>.<\/p>\n<h2>Best Crystals to Pair With Sardonyx<\/h2>\n<p>Pairing is about layering intentions \u2014 picking stones whose qualities complement rather than compete. A few combinations that work well with sardonyx&#8217;s warm, grounding energy:<\/p>\n<ul>\n<li><strong>Sardonyx + <a href=\"\/fr\/gemstone\/carnelian-meaning\/\">Cornaline<\/a><\/strong> \u2014 two warm, grounding stones; a bold pairing for strength and motivation.<\/li>\n<li><strong>Sardonyx + <a href=\"\/fr\/gemstone\/tiger-eye-meaning\/\">Tiger&#8217;s Eye<\/a><\/strong> \u2014 earth meets courage; a steady combo for confidence and willpower.<\/li>\n<li><strong>Sardonyx + <a href=\"\/fr\/gemstone\/clear-quartz-meaning\/\">Quartz transparent<\/a><\/strong> \u2014 warmth meets clarity; many use quartz to lift sardonyx&#8217;s strengthening intention.<\/li>\n<\/ul>\n<p>The logic of pairing is about complementary intentions, not strict rules. Pick combinations that match what you&#8217;re actually working on, and trust your own sense of what feels balanced.<\/p>\n<h2>Who Should Use Sardonyx?<\/h2>\n<p>Sardonyx suits people who want a <strong>warm, grounding stone for strength and courage<\/strong> \u2014 anyone wanting confidence, motivation, or drawn to its cameo-carving heritage. It&#8217;s one of the most approachable stones because it&#8217;s affordable, durable, and rich in history.<\/p>\n<p>A few honest expectations: sardonyx is a hard chalcedony (Mohs 6.5\u20137), so it&#8217;s easy to care for and great for daily wear. It isn&#8217;t a treatment for anxiety, low confidence, or any condition; if you&#8217;re dealing with something persistent, a healthcare professional is the right call, and the stone can be a comfort alongside that. Some stones are dyed, so buy from a seller who states it. Its value comes from the intention you build around it. Go in expecting a warm, durable, historic stone for strength, and it tends to fit well.<\/p>\n<h2>FAQ About Sardonyx Meaning<\/h2>\n<div class=\"faq-list\">\n<details>\n<summary>What is sardonyx?<\/summary>\n<p>A banded chalcedony (microcrystalline quartz) with flat, parallel layers of brownish-red sard and white onyx. It&#8217;s famous for cameo carving, where the two colors are cut in relief.<\/p>\n<\/details>\n<details>\n<summary>Is sardonyx an August birthstone?<\/summary>\n<p>Yes. Sardonyx is one of the modern birthstones for August, alongside peridot and spinel.<\/p>\n<\/details>\n<details>\n<summary>What is the difference between sardonyx and onyx?<\/summary>\n<p>Color. Onyx has black (or dark) and white bands; sardonyx has brownish-red (sard) and white bands. Both are banded chalcedony, and they&#8217;re cut and carved the same way.<\/p>\n<\/details>\n<details>\n<summary>What chakra is sardonyx associated with?<\/summary>\n<p>Traditionally the root and sacral centers, linked to grounding, willpower, and personal strength.<\/p>\n<\/details>\n<details>\n<summary>Can sardonyx go in water?<\/summary>\n<p>Yes. At Mohs 6.5\u20137 it&#8217;s a hard, water-safe stone. A brief rinse is fine; avoid long salt-water soaks.<\/p>\n<\/details>\n<details>\n<summary>How can I tell real sardonyx?<\/summary>\n<p>Look for natural, flat parallel bands with color depth, test hardness (Mohs 6.5\u20137, scratches glass), and check that the color sits within the stone, not just in cracks (a sign of dye).<\/p>\n<\/details>\n<details>\n<summary>What does sardonyx symbolize?<\/summary>\n<p>Most often strength, courage, and lasting happiness \u2014 a warm, banded stone for confidence and steady well-being.<\/p>\n<\/details>\n<\/div>\n<h2>Final Thoughts on Sardonyx<\/h2>\n<p>Sardonyx earns its place as a stone of strength and courage \u2014 and it earns it again for each person who wears it and gives it meaning. If you&#8217;re curious, the simplest start is one warm, banded piece, one intention, and a small daily moment to notice it. You don&#8217;t need the finest cameo or the deepest sard; you need a stone whose warmth you can feel. Let the routine do the work, and let those brown-and-white bands be the cue to stay strong and confident.<\/p>\n<p>From there, sardonyx tends to open a steadier, warmer space \u2014 a lift of courage, a steadier sense of happiness, or simply a beautiful, historic stone you&#8217;re glad to wear. If that&#8217;s what you&#8217;re after, you&#8217;re in the right place. For more, explore the <a href=\"\/fr\/gemstones\/\">Crystal Guide<\/a> or browse <a href=\"\/fr\/categorie-produit\/sardonyx-crystals\/\">sardonyx pieces<\/a>.<\/p>\n<\/div>\n<div class=\"crystal-profile\">\n<h3>Sardonyx Profile<\/h3>\n<div class=\"sidebar-section\">\n<h4>Overview<\/h4>\n<dl>\n<dt>Chakra<\/dt>\n<dd>Root, Sacral<\/dd>\n<dt>Zodiac<\/dt>\n<dd>Aries, Leo<\/dd>\n<dt>Element<\/dt>\n<dd>Earth<\/dd>\n<dt>Color<\/dt>\n<dd>Brownish-red and white banded<\/dd>\n<dt>Intentions<\/dt>\n<dd>Strength, Courage, Happiness<\/dd>\n<dt>Best for<\/dt>\n<dd>Confidence, Willpower, August birthstone<\/dd>\n<dt>Forms<\/dt>\n<dd>Cameo pendant, Cabochon ring, Bead, Sphere<\/dd>\n<\/dl>\n<\/div>\n<div class=\"sidebar-divider\"><\/div>\n<div class=\"sidebar-section\">\n<h4>Mineral<\/h4>\n<dl>\n<dt>Formula<\/dt>\n<dd>SiO\u2082 (chalcedony \/ quartz)<\/dd>\n<dt>Crystal system<\/dt>\n<dd>Trigonal (quartz)<\/dd>\n<dt>Hardness<\/dt>\n<dd>6.5\u20137 (Mohs)<\/dd>\n<dt>Luster<\/dt>\n<dd>Vitreous to waxy<\/dd>\n<dt>Transparency<\/dt>\n<dd>Opaque<\/dd>\n<dt>Specific gravity<\/dt>\n<dd>2.6<\/dd>\n<dt>Color cause<\/dt>\n<dd>Iron oxide (sard) + pure chalcedony (white)<\/dd>\n<dt>Origins<\/dt>\n<dd>India, Brazil, Uruguay, Germany, Madagascar<\/dd>\n<\/dl>\n<\/div>\n<div class=\"sidebar-divider\"><\/div>\n<div class=\"sidebar-section\">\n<h4>Safety<\/h4>\n<div class=\"safety-badges\">\n<span class=\"safety-badge badge-safe\">Water: Brief rinse safe<\/span><br \/>\n<span class=\"safety-badge badge-safe\">Sun: Sun-safe<\/span><br \/>\n<span class=\"safety-badge badge-avoid\">Salt: Avoid salt water<\/span>\n<\/div>\n<\/div>\n<p><a class=\"cta-button\" href=\"\/fr\/categorie-produit\/sardonyx-crystals\/\">Explore Sardonyx \u2192<\/a>\n<\/div>\n<\/div>","protected":false},"featured_media":40271,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-40279","gemstone","type-gemstone","status-publish","format-standard","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/goearthward.com\/fr\/wp-json\/wp\/v2\/gemstone\/40279","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/goearthward.com\/fr\/wp-json\/wp\/v2\/gemstone"}],"about":[{"href":"https:\/\/goearthward.com\/fr\/wp-json\/wp\/v2\/types\/gemstone"}],"replies":[{"embeddable":true,"href":"https:\/\/goearthward.com\/fr\/wp-json\/wp\/v2\/comments?post=40279"}],"version-history":[{"count":2,"href":"https:\/\/goearthward.com\/fr\/wp-json\/wp\/v2\/gemstone\/40279\/revisions"}],"predecessor-version":[{"id":42714,"href":"https:\/\/goearthward.com\/fr\/wp-json\/wp\/v2\/gemstone\/40279\/revisions\/42714"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/goearthward.com\/fr\/wp-json\/wp\/v2\/media\/40271"}],"wp:attachment":[{"href":"https:\/\/goearthward.com\/fr\/wp-json\/wp\/v2\/media?parent=40279"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}