{"product_id":"cronstedtite-2","title":"CRONSTEDTITE","description":"Cronstedtite, a complex iron silicate, is one of the classic minerals associated with Wheal Jane at Baldhu, between Redruth and the city of Truro in Cornwall.  The Cronstedtite forms triangular crystals, 1 to 2 mm across, jet-black with a bright reflective lustre.  They richly cover a 5 x 1.5 cm surface of grey Killas matrix.  Tiny deep tan Siderite crystals forming botryoidal mounds are also present.  It's a fine and rich example of the rare mineral Cronstedtite, from Wheal Jane.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":57780842692943,"sku":"CC13505","price":740.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/3748\/2063\/files\/CC13505_f2a3ede9-ede6-4755-85d5-71351ddbdbf9.jpg?v=1783970265","url":"https:\/\/crystalclassics.co.uk\/products\/cronstedtite-2","provider":"Crystal Classics UK","version":"1.0","type":"link"}