{"product_id":"sphalerite-on-chalcopyrite-with-quartz","title":"SPHALERITE on CHALCOPYRITE  with QUARTZ","description":"An interesting miniature of Sphalerite on Chalcopyrite with Quartz from the Banská Štiavnica polymetallic deposit in Slovakia.  This mining district lies within the central zone of a former large stratovolcano and contains both precious and base metals. Well-developed black Sphalerite crystals up to 8 mm are perched over larger, golden brassy Chalcopyrite crystals on a bed of needle-like, colourless to milky Quartz crystals.  It is accompanied by a modern collector’s label yet the specimen has a patina which suggests it has resided in other collections for many years!\n","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":46584776818863,"sku":"CC32026","price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/8516\/2671\/files\/CC32026.png?v=1771856085","url":"https:\/\/crystalclassics.com\/products\/sphalerite-on-chalcopyrite-with-quartz","provider":"Crystal Classics","version":"1.0","type":"link"}