{"product_id":"proustite-16","title":"PROUSTITE","description":"Proustite, one of two silver sulphosalts known as ruby silver (the other being Pyrargyrite), is an extremely desirable mineral for collectors. This is in part because of its wonderful blood-red colour, but also its rarity in good crystals. This thumbnail specimen, consisting of a small aggregate of well-formed crystals, has been mounted upon an inverted glass stopper. We do not know when this was done, but it is certainly an unusual, but effective way to display a specimen. The Proustite aggregate is dominated by a 11 mm tall well-formed trigonal crystal with great red colour and internal translucency. Surrounding the base of that crystal are small, but equally well-formed Proustite crystals to 4 mm in length. The specimen is from Niederschlema, Schlema, Schlema-Hartenstein District, Erzgebirge, Saxony, Germany, making it a European classic. A top class silver-bearing specimen for the discerning collector.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":57781201273167,"sku":"CC27941","price":4441.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/3748\/2063\/files\/CC27941_3a84e8ba-ce3e-408c-bbb5-8141ed9d9e2a.jpg?v=1783981611","url":"https:\/\/crystalclassics.co.uk\/products\/proustite-16","provider":"Crystal Classics UK","version":"1.0","type":"link"}