{"product_id":"silver-sheen-obsidian-bracelet-8-mm-beads-natural","title":"Silver sheen obsidian bracelet, 8 mm beads — natural","description":"\u003cp dir=\"ltr\"\u003eA stretch bracelet in 8 mm silver sheen obsidian beads, dark grey to black with a metallic shimmer that moves as you turn your wrist.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe sheen is gas. Obsidian forms when silica-rich lava cools too fast for its atoms to organise into crystals, so it sets as glass. Tiny bubbles trapped in that glass sit in roughly parallel layers, and light bouncing off them produces the silver sheen. Turn the bead and the sheen moves, because a different layer catches the light.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eIt is glass, which means it is brittle. Harder than fluorite at 5 to 5.5, but a sharp knock will chip a bead rather than scratch it, and a chipped obsidian edge is genuinely sharp.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eMineral:\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eObsidian, a volcanic glass\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003eCrystal system:\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003eNone, obsidian is amorphous\u003cbr\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003eNot recorded\u003cbr\u003e\u003cstrong\u003eHardness:\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003e5 to 5.5 on the Mohs scale; brittle, chips rather than scratches\u003cbr\u003e\u003cstrong\u003eTreatment:\u003c\/strong\u003e None\u003cbr\u003e\u003cstrong\u003eApprox. inner circumference:\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003e7 cm unstretched\u003cbr\u003e\u003cstrong\u003eBead diameter: \u003c\/strong\u003e8 mm\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003cstrong\u003eApprox. weight:\u003c\/strong\u003e 15 g\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003cstrong\u003eStringing: \u003c\/strong\u003eElastic, stretch fit                                                                                                                          \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003ePhotographed as an example. These are strung in batches from the same material, so yours will be closely similar in colour and pattern but not the exact bracelet pictured.\u003c\/p\u003e","brand":"The Crystal Showroom","offers":[{"title":"Default Title","offer_id":59002132496728,"sku":null,"price":15.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0778\/4880\/5720\/files\/ssob-1.jpg?v=1793571533","url":"https:\/\/thecrystalshowroom.com\/products\/silver-sheen-obsidian-bracelet-8-mm-beads-natural","provider":"The Crystal Showroom","version":"1.0","type":"link"}