{"product_id":"tetrahedrite-with-chalcopyrite-and-galena","title":"TETRAHEDRITE with CHALCOPYRITE and GALENA","description":"Metallic grey Tetrahedrite crystal to 2 cm, with an aesthetic metallic sheen are partly coated with a thin film of iridescent, golden-bronze micro-crystals of Chalcopyrite which also appear silky-satin in a play of light.  Within these areas of Chalcopyrite are rich purple, blue and copper-coloured iridescence patches.  From Zilla at Clausthal-Zellerfeld in Harz, Lower Saxony, Germany, this specimen has clearly been orientated a vertical orientation whilst in-situ, because a crystallised cream Calcite and tan Dolomite preferentially coat the Tetrahedrite faces in an aligned direction, adding greatly to the overall aesthetic.  A few small areas of cleaved Galena are also present in this complex and most attractive specimen.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":57780369981775,"sku":"CC10369","price":3701.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/3748\/2063\/files\/CC10369_5e777eec-5b7e-4b56-a409-700e7f8a952a.jpg?v=1783967999","url":"https:\/\/crystalclassics.co.uk\/products\/tetrahedrite-with-chalcopyrite-and-galena","provider":"Crystal Classics UK","version":"1.0","type":"link"}