{"product_id":"iceland-spar-calcite-4","title":"Iceland spar calcite","description":"\u003cp\u003eIceland spar calcite from China\u003c\/p\u003e\n\u003cp\u003eSize-\u003cbr\u003e3.7cm x 2.4cm x 1.5cm\u003c\/p\u003e\n\u003cp\u003eWeight-\u003cbr\u003e28g\u003c\/p\u003e\n\u003cp\u003eYou will receive the item in the photo \u003c\/p\u003e\n\u003cp\u003eIceland spar is a transparent water clear variety of calcite. \u003cbr\u003eMineral class-carbonate \u003cbr\u003eCrystal system- Trigonal \u003cbr\u003eCrystal habits- Typically forms rhombohedral crystals (slanted boxes\/cubes) with perfect rhombohedral cleavage in three directions.\u003cbr\u003eHardness- 3 on the MOHs scale\u003cbr\u003eRock formation- precipitates from calcium and carbonate rich aqueous solutions in sedimentary environments (limestone and dolomite),hydrothermal veins and evaporite deposits.\u003cbr\u003eFound inside cavities and veins running through basalt,limestone or marble.\u003c\/p\u003e","brand":"Crystal and fossils","offers":[{"title":"Default Title","offer_id":63199193694595,"sku":null,"price":4.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/2524\/3040\/files\/IMG_1918.heic?v=1793640737","url":"https:\/\/crystalandfossils.co.uk\/products\/iceland-spar-calcite-4","provider":"Crystal and fossils","version":"1.0","type":"link"}