{"product_id":"sphalerite-with-siderite","title":"SPHALERITE with SIDERITE","description":"A choice, tightly packed group of metallic black Sphalerite crystals to 2.3 cm cover a deep buff to creamy-tan matrix of small saddle-habit Siderite crystals. From the mining area around Nenthead on Alston Moor in east Cumbria, the Sphalerite crystals are typically squat with complex growth structures on each face and have a silky lustre.   Although the specimen is labelled as Siderite, this is likely to be Ankerite.  A good cabinet display specimen.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":57780860027215,"sku":"CC13626","price":296.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/3748\/2063\/files\/CC13626_7a9fe252-cf6a-4945-8bf9-28479a7f96a8.jpg?v=1783970360","url":"https:\/\/crystalclassics.co.uk\/products\/sphalerite-with-siderite","provider":"Crystal Classics UK","version":"1.0","type":"link"}