{"product_id":"sphalerite-14","title":"SPHALERITE","description":"This fine specimen of crystalised Sphalerite is obviously very old judging by the unprovenanced label glued to its base; an oval label with a magenta outer double ring and the handwritten number 56\/72.  The sphalerite is iron-rich based on its black appearance, although where crystals thin along their edges, translucent shots of reddish clove-brown appear when back-lit.  Individual crystals range from about 1 to 3 mm, but develop to form composite crystals of about, say, 1 to 2 cm wide.  The flat base reveals an inner core of micro-crystalline light grey Quartz mixed with granular Sphalerite and iron-stained orange-tan in places.  A good historic Sphalerite from Cumbria.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":57780869235023,"sku":"CC14092","price":222.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/3748\/2063\/files\/CC14092_1bc0af89-4b14-463b-8139-05cae9097284.jpg?v=1783970633","url":"https:\/\/crystalclassics.co.uk\/products\/sphalerite-14","provider":"Crystal Classics UK","version":"1.0","type":"link"}