{"product_id":"marquise-black-chalcedony-cabochon-32x7mm-pack-15-closeout","title":"Closeout Pack-15 Marquise 32x7mm Black Chalcedony Cabochon","description":"\u003cp\u003eChalcedony is a cryptocrystalline form of quartz, composed of tiny crystals too small to see with the naked eye. Natural black chalcedony is exceptionally rare — virtually all black chalcedony on the market is grey chalcedony that has been chemically treated to achieve its deep, shiny black color. Black chalcedony and its close relative black onyx are enduring favorites in jewelry design, historically prominent in Art Deco pieces and still widely used today for their bold, uniform appearance.\u003c\/p\u003e\u003cp\u003eThis closeout pack contains 15 marquise-shaped black chalcedony cabochons, each measuring 32x7mm. The elongated marquise silhouette and opaque black finish make these stones well-suited for statement rings, pendants, brooches, and other metalsmithing projects. Clean with warm, soapy water; ultrasonic and steam cleaning are generally considered safe for this material.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUniform opaque black color throughout\u003c\/li\u003e\n\u003cli\u003eDyed grey chalcedony treated to achieve black finish\u003c\/li\u003e\n\u003cli\u003eMarquise cabochon shape — ideal for rings, pendants, and brooches\u003c\/li\u003e\n\u003cli\u003eCloseout pricing — limited quantity available\u003c\/li\u003e\n\u003cli\u003eSafe to clean with warm, soapy water; ultrasonic and steam cleaning generally safe\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\u003eMarquise Cabochon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003ctd\u003e32x7mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eBlack Chalcedony (Dyed Grey Chalcedony)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTreatment\u003c\/th\u003e\n\u003ctd\u003eDyed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eUniform Opaque Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Quantity\u003c\/th\u003e\n\u003ctd\u003e15 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNatural black chalcedony is rare; these stones are grey chalcedony treated with chemicals to produce the black color — this is standard practice throughout the industry.\u003c\/li\u003e\n\u003cli\u003eCloseout item — available while supplies last.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":44984509202646,"sku":"990-349","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/products\/closeout-pack-15-marquise-32x7mm-black-chalcedony-cabochon-otto-frei.jpg?v=1719954415","url":"https:\/\/www.ottofrei.com\/products\/marquise-black-chalcedony-cabochon-32x7mm-pack-15-closeout","provider":"Otto Frei","version":"1.0","type":"link"}