{"product_id":"2-12-mabor-mgo-cupels-3-16x1-85-gold-assay-smelting-refining-354-grams-lead","title":"2 #12 Mabor (MgO) Cupels 3.16\"x1.85\" Gold-Assay-Smelting-Refining 354 Grams lead","description":"\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003eEach\u003c\/span\u003e Cupel will absorb approximately 354.4 grams of lead .\u003c\/p\u003e\r\n\u003cp\u003eCupels are made from high quality dead burnt magnesia (MgO). Hard, smooth surface with consistency in weight and size. Provide exceptional results in gold mines, precious metal refiners, alloy melters, hallmarking, geological and test laboratories worldwide. Each crucible will be wrapped in paper and shipped in a box\u003c\/p\u003e\r\n\u003cp\u003eCUPEL DIMENSION DATA (mm \/ inches)\u003cbr\u003e D – 80.2 \/ 3.16\u003cbr\u003e D1 – 57.5 \/ 2.26\u003cbr\u003e D2 – 62.5 \/ 2.46\u003cbr\u003e H – 47.0 \/ 1.85\u003cbr\u003e H1 – 16.5 \/ 0.65\u003c\/p\u003e\r\n\u003cp\u003eWeight: 443.0g Approx.\u003cbr\u003e \u003cimg decoding=\"async\" src=\"https:\/\/www.lmine.com\/wp-content\/uploads\/products\/cupeldatazZz.gif\" width=\"250\"\u003e\u003c\/p\u003e\r\n\u003cbr\u003e\r\n\u003cp\u003e\u003cfont size=\"4\"\u003eThe lead button for cupellation is typically generated in the crucible fusion from the fire assay process, but can also be produced by a scorification assay, or a bullion assay where the precious metal is wrapped in lead foil. \u003cbr\u003e\u003cbr\u003eTypical cupellation furnace temperatures in gold and silver assays are 1650-1700F, but can vary with technique, air flow volume, and cupel material.\u003c\/font\u003e\u003c\/p\u003e","brand":"Make Your Own Gold Bars.com","offers":[{"title":"Default Title","offer_id":42211076669520,"sku":"16700x2","price":35.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0257\/7406\/3696\/files\/17390742.jpg?v=1775853351","url":"https:\/\/makeyourowngoldbars.com\/products\/2-12-mabor-mgo-cupels-3-16x1-85-gold-assay-smelting-refining-354-grams-lead","provider":"Make Your Own Gold Bars.com","version":"1.0","type":"link"}