{"product_id":"smithsonite-on-tennantite","title":"SMITHSONITE on TENNANTITE","description":"Unique to Tsumeb mine is the association of finely crystallized Smithsonite encapsulating earlier tetrahedral Tennantite crystals. This small cabinet-sized specimens displays this combination very well with the tiny glossy colourless Smithsonite crystals looking grey due to the colour of the underlying Tennantite crystals which, individually reaching up to 3 cm across, form a very well-crystallized aggregate. With the splitting up of the Tennantite and Tetrahedrite groups of minerals most Tsumeb crystals are now considered to be Tennantite-(Zn) and with alteration to Smithsonite (zinc carbonate) one could expect that the Tennantite is indeed zinc-rich. A quite impressive display of this important stage of oxidation from Tsumeb mine.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":46933576057007,"sku":"CC36783","price":2400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/8516\/2671\/files\/CC36783.png?v=1788268084","url":"https:\/\/crystalclassics.com\/products\/smithsonite-on-tennantite","provider":"Crystal Classics","version":"1.0","type":"link"}