{"product_id":"australian-boulder-opal-cabochon-30x20mm-oval-no-opalescence","title":"Closeout No Opalescence Australian 30mm x 20mm 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 was created over millions of years as rainwater dissolved silica from the earth's surface and deposited it into natural cavities within the ironstone. The ironstone backing provides a natural reinforcement that makes Boulder Opal more resistant to cracks and fractures compared to other opal types, resulting in \u003cstrong\u003eexceptional durability\u003c\/strong\u003e.\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. Each stone's pattern remains entirely unique and visually striking — simply without the flashes of color associated with precious opal. The rough material for this stone originated near the city of Cunnamulla, Queensland.\u003c\/p\u003e\u003cp\u003eCare: Clean with warm, soapy water. \u003cem\u003eAvoid ultrasonic cleaners, steam cleaners, and sudden or rapid heat changes.\u003c\/em\u003e Sold by the piece.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAuthentic Australian Boulder Opal, sourced from Queensland\u003c\/li\u003e\n\u003cli\u003eRough originated near Cunnamulla, Queensland, Australia\u003c\/li\u003e\n\u003cli\u003eIronstone backing provides natural reinforcement and added durability\u003c\/li\u003e\n\u003cli\u003eNo Opalescence classification — unique stone patterns without color flash\u003c\/li\u003e\n\u003cli\u003eOpaque appearance\u003c\/li\u003e\n\u003cli\u003eTreatment: None (N) — untreated natural gemstone\u003c\/li\u003e\n\u003cli\u003eSold individually by the piece\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\u003e30mm x 20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCut\u003c\/th\u003e\n\u003ctd\u003eCabochon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAppearance\u003c\/th\u003e\n\u003ctd\u003eOpaque\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOpalescence\u003c\/th\u003e\n\u003ctd\u003eNone (No Opalescence)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTreatment\u003c\/th\u003e\n\u003ctd\u003eNone (N) — Untreated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eQueensland, Australia (near Cunnamulla)\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\u003ctr\u003e\n\u003cth\u003eSold As\u003c\/th\u003e\n\u003ctd\u003eIndividual piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eClean with warm, soapy water only.\u003c\/li\u003e\n\u003cli\u003eDo not use ultrasonic cleaners, steam cleaners, or expose to sudden rapid heat changes.\u003c\/li\u003e\n\u003cli\u003eThis is a closeout item — natural variations in pattern and color are inherent to each individual stone.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":46554652082390,"sku":"990.323","price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/990.323NEW1_thumb_238d43e5-f820-45ce-9ce8-8c22c64269dd.jpg?v=1747953992","url":"https:\/\/www.ottofrei.com\/es\/products\/australian-boulder-opal-cabochon-30x20mm-oval-no-opalescence","provider":"Otto Frei","version":"1.0","type":"link"}