{"product_id":"australian-boulder-opal-oval-25x18mm-no-opalescence-cunnamulla-closeout","title":"Closeout No Opalescence Australian 25mm x 18mm Oval Boulder Opal","description":"\u003cp\u003eBoulder Opal is found exclusively in Queensland, Australia, where veins and patches of precious opal form within rugged brown ironstone boulders. This gem developed over millions of years as rainwater dissolved silica from the earth's surface and deposited it into natural cavities within the ironstone. The result is a stone of \u003cstrong\u003eexceptional durability\u003c\/strong\u003e — the ironstone backing provides natural reinforcement that makes Boulder Opal more resistant to cracks and fractures compared to other opal varieties.\u003c\/p\u003e\u003cp\u003eThis particular stone is classified as \u003cstrong\u003eNo Opalescence\u003c\/strong\u003e, meaning it contains none of the characteristic color play associated with precious opal. Each stone's pattern remains entirely unique and visually distinctive — simply without the flashes of color. The rough for this stone originated near the city of Cunnamulla, Queensland.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAustralian Boulder Opal with ironstone backing for natural structural reinforcement\u003c\/li\u003e\n\u003cli\u003eNo opalescence — zero color play, with a unique and individual surface pattern\u003c\/li\u003e\n\u003cli\u003eRough originated near Cunnamulla, Queensland, Australia\u003c\/li\u003e\n\u003cli\u003eOpaque appearance\u003c\/li\u003e\n\u003cli\u003eTreatment: None (N) — completely untreated\u003c\/li\u003e\n\u003cli\u003eMore resistant to cracks and fractures than other opal types due to ironstone backing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eShape\u003c\/th\u003e\n\u003ctd\u003eOval\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e25 mm × 18 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTransparency\u003c\/th\u003e\n\u003ctd\u003eOpaque\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTreatment\u003c\/th\u003e\n\u003ctd\u003eNone (N)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOpalescence\u003c\/th\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eCunnamulla region, Queensland, Australia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBacking\u003c\/th\u003e\n\u003ctd\u003eNatural ironstone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eClean with warm, soapy water only. \u003cstrong\u003eAvoid ultrasonic cleaners, steam cleaners, and sudden or rapid heat changes.\u003c\/strong\u003e This item is offered as a closeout — available while supplies last.\u003c\/p\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":46612250427606,"sku":"990.319","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/990.319NEW_thumb_97fa7051-00c5-4836-b6fc-a06062596b4e.jpg?v=1747953944","url":"https:\/\/www.ottofrei.com\/es\/products\/australian-boulder-opal-oval-25x18mm-no-opalescence-cunnamulla-closeout","provider":"Otto Frei","version":"1.0","type":"link"}