{"product_id":"cassiterite-25","title":"CASSITERITE","description":"A roughly 3 x 1.5 cm area of nicely crystallised Cassiterite crystals on a mid-grey killas matrix, from the St. Agnes mining district on the north Cornwall coast, due north of Redruth.  The Cassiterite forms opaque black crystals with a bright metallic lustre and of up to 9 mm across.  A good reference Cassiterite for the St. Agnes district.  ","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":57780630978895,"sku":"CC12870","price":222.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/3748\/2063\/files\/CC12870_79419a42-4a97-4aba-b36a-80827dc0a455.jpg?v=1783969695","url":"https:\/\/crystalclassics.co.uk\/products\/cassiterite-25","provider":"Crystal Classics UK","version":"1.0","type":"link"}