{"product_id":"australian-boulder-opal-0-69g-4-copy","title":"Australian Boulder Opal 0.69g Specimen box #4","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAustralian Boulder Opals are considered the second most valuable type of opal, following Black Opal. \u003c\/span\u003e\u003cspan\u003eBoulder Opals are easily distinguished by the layer of solid brown ironstone naturally left on the back of the stone. As the name suggests, Boulder Opals are mined from large ironstone boulders found underground.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThin veins of colourful opal form within cracks and fissures in these ironstone boulders. Because these veins can be incredibly thin, opal cutters leave the ironstone attached to the back of the opal, helping to support and preserve the full sized stone. \u003c\/span\u003e\u003cspan\u003eDespite the thin layer of opal, Boulder Opals can display a beautiful play of colour across the entire spectrum, creating unique flashes of colour and patterns in every piece. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOrigin:\u003cspan\u003e Queensland, Australia\u003c\/span\u003e\u003c\/p\u003e","brand":"Xina Studios","offers":[{"title":"Default Title","offer_id":48324137451726,"sku":null,"price":40.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/5691\/9246\/files\/IMG_0438.heic?v=1788574002","url":"https:\/\/xinastudios.co.nz\/products\/australian-boulder-opal-0-69g-4-copy","provider":"Xina Studios","version":"1.0","type":"link"}