{"product_id":"ferberite-4","title":"FERBERITE","description":"Not so long ago we used to refer to Ferberite as Wolframite, but those simpler days are now gone!  Ferberite is the iron (Fe) end-member of the manganese-iron wolframite solid solution series, the Mn end being H'bnerite.  This delightful large thumbnail has a 1.9 x 0.9 x 0.3 cm black Ferberite bladed crystal, with a bright reflective metallic lustre, standing vertical on a mixed Galena and Pyrite matrix coated with snow-white Calcite crystals.  The Calcites are themselves superb, forming individual, highly distorted and flattened rhombohedrons, which stack to create vermiform (worm-shaped) chains which criss-cross the matrix's surface.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":57781123252559,"sku":"CC20231","price":370.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/3748\/2063\/files\/CC20231_c90ab9a8-ecac-4325-83b8-a0f55b424b60.jpg?v=1783977921","url":"https:\/\/crystalclassics.co.uk\/products\/ferberite-4","provider":"Crystal Classics UK","version":"1.0","type":"link"}