{"product_id":"proustite-17","title":"PROUSTITE","description":"A terminated, highly lustrous, 5 x 3 x 3 mm Proustite crystal nestles in a shallow vug within a white Calcite and Dolomite matrix from the P?'bram mining district in the Czech Republic.  The Proustite, a silver-arsenic sulphosalt, appears metallic jet-black, but once strongly backlit releases flashes of deep claret-red.  A slightly smaller, more granular patch of Proustite sits adjacent to this and on the base, Proustite can be seen disseminated throughout the sulphide-rich matrix together with sub-mm crystals of Pyrite.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":46584155603119,"sku":"CC19671","price":400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/8516\/2671\/files\/CC19671.png?v=1771845357","url":"https:\/\/crystalclassics.com\/products\/proustite-17","provider":"Crystal Classics","version":"1.0","type":"link"}