{"product_id":"obsidian-mirror-b-natural-mexico","title":"Obsidian mirror (B) — natural, Mexico","description":"\u003cp dir=\"ltr\"\u003eA polished obsidian disc on a stand. Strictly speaking it isn't a mineral at all.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eMinerals have an ordered internal structure, atoms stacked in a repeating pattern. Obsidian has none. It forms when lava high in silica cools so fast that the atoms never get the chance to organise themselves, and it sets as glass instead, frozen mid-arrangement. That's why every other listing here has a crystal system and this one says none.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe disorder is the reason it works as a mirror. There are no crystal boundaries to scatter light at, so a worked surface goes properly flat and reflects cleanly. It's also why obsidian breaks in smooth curved shells rather than along flat planes, and why a fresh edge on it can come off sharper than a surgical blade.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eMohs 5 to 5.5, so the polished face marks more easily than quartz does. Dust it before wiping, and use a soft dry cloth. Chipped obsidian edges are genuinely sharp, so handle a damaged piece with care.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eMineral:\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003eObsidian, a volcanic glass\u003cbr\u003e\u003cstrong\u003eCrystal system:\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003eNone, obsidian is amorphous\u003cbr\u003e\u003cstrong\u003eOrigin: \u003c\/strong\u003eMexico\u003cbr\u003e\u003cstrong\u003eHardness: \u003c\/strong\u003e5 to 5.5 on the Mohs scale; the polished face scratches easily and shows marks\u003cbr\u003e\u003cstrong\u003eTreatment: \u003c\/strong\u003eNone\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e 12.3 x 8.35 x 21.5 cm\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 335 g                                                                                                                                            \u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Supplied on a stand\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eYou will receive the exact piece photographed.\u003c\/p\u003e","brand":"The Crystal Showroom","offers":[{"title":"Default Title","offer_id":58513776705880,"sku":null,"price":66.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0778\/4880\/5720\/files\/bom-b-1.jpg?v=1789825019","url":"https:\/\/thecrystalshowroom.com\/products\/obsidian-mirror-b-natural-mexico","provider":"The Crystal Showroom","version":"1.0","type":"link"}