{"product_id":"michigan-copper-crystal-specimen","title":"Michigan Copper Crystal Specimen","description":"These unique native copper formations are created through the copper sculpture-making process using natural copper from Michigan. Molten copper, heated to approximately 2,300°F, is poured into water-soaked straw, creating fascinating organic shapes as the copper cools and solidifies. The straw burns away, leaving behind intricate textures, unusual formations, and beautiful metallic details. Each piece is completely unique, with its own natural shape and character. These smaller copper formations are wonderful for mineral collections, artistic displays, and anyone who appreciates the beauty of native copper.\u003cbr\u003e\u003cbr\u003eThis listing is for ONE (1) selected specimen. Each piece has been handpicked and examined for quality. The photography used is a representation of our collection, the unique specimen you receive will be similar to the stones pictured and will have its own individual traits. Specimens categorized by weight don’t have specific size measurements provided, as each piece has a different shape and mass. \u003cbr\u003e\u003cbr\u003e","brand":"Infinite Spiral Gems","offers":[{"title":"Small (4-7g)","offer_id":68208800825565,"sku":"COP-SCULP-S","price":13.0,"currency_code":"USD","in_stock":true},{"title":"Medium (7-10g)","offer_id":68208800858333,"sku":"COP-SCULP-M","price":21.0,"currency_code":"USD","in_stock":true},{"title":"Large (10-15g)","offer_id":68208800891101,"sku":"COP-SCULP-L","price":29.0,"currency_code":"USD","in_stock":true},{"title":"X-Large (15-20g)","offer_id":68208800923869,"sku":"COP-SCULP-XL","price":37.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/1669\/9869\/files\/il_fullxfull.8688539410_gsdm.jpg?v=1792162930","url":"https:\/\/infinitespiralgems.com\/products\/michigan-copper-crystal-specimen","provider":"Infinite Spiral Gems","version":"1.0","type":"link"}