{"product_id":"calcite-with-duftite-2","title":"CALCITE   with DUFTITE","description":"I just love specimens that are a little out of the ordinary and this funky piece from Tsumeb mine is just that. Looking like a colony of coral picked up from some tropical sea this wonderful small cabinet specimen comprises a bed of parallel tubes of beige coloured Calcite with nicely contrasting orange-brown infilling. Presumably stalactites, each of the tubes has a diameter of just 2 to 3 mm, but combined they make an incredibly artistic display. Should there be any doubt at all that this is mineralogical, and from Tsumeb mine, then the presence of a thin coating of green Duftite (a rare lead copper arsenate species) on the base provides confirmation. That said, I have never seen another like it from Tsumeb. Ex Weyand collection.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":46549961015471,"sku":"CC52734","price":1200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/8516\/2671\/files\/CC52734.png?v=1770654991","url":"https:\/\/crystalclassics.com\/products\/calcite-with-duftite-2","provider":"Crystal Classics","version":"1.0","type":"link"}