{"product_id":"tennantite-with-quartz-1","title":"TENNANTITE   with QUARTZ","description":"Sooty and matt, dark grey-black tetrahedral crystals of Tennantite with edges typically to 1.0 cm, but up to 2.3 cm, are intergrown to form a open, cradle-like structure which rises at each end as stacked mounds of crystals.  Small milky-white Quartz crystals to 3 or 4 mm occasionally form small patches on the Tennantite.  Solid metallic Tennantite can bee seen in the specimen's base as a granular bright silver-white-grey metal.  An excellent specimen from the Tsumeb mine in Namibia.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":57781011022159,"sku":"CC18951","price":2591.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/3748\/2063\/files\/CC18951_a82b1c0c-8b62-47e8-8d1f-2d3159f7a74e.jpg?v=1783975463","url":"https:\/\/crystalclassics.co.uk\/products\/tennantite-with-quartz-1","provider":"Crystal Classics UK","version":"1.0","type":"link"}