{"product_id":"gratonite","title":"GRATONITE","description":"This well-crystallized sulphosalt miniature displays the extremely rare lead arsenic sulphide, Gratonite, from the area of its Type Locality - Cerro De Pasco, Peru. Described and named in 1939, the world's best crystals of Gratonite still come from Cerro De Pasco. Crystals never reach more than a few mm in length and usually coalesce as radiating aggregates, often detached from matrix as small sprays typically less than 1 cm in diameter. This extremely fine example, formerly in the exceptional rare species collection of Professor Werner Paar, is on matrix, and features roughly 50 % Quartz veinstone with the top 1.5 cm of the specimen displaying perfect terminated trigonal Gratonite crystals, individually reaching 2.5 mm in length. These crystals are decidedly fresh, with a lovely glossy, dark grey appearance. Having matrix attached really enhances the quality of this piece, and has allowed it to be mounted upright for display on an acrylic base. A top quality Gratonite from the world's first, and premier occurrence.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":57780963344719,"sku":"CC15915","price":4441.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/3748\/2063\/files\/CC15915_4ec7f7fe-3254-4255-856e-b263099fcd11.jpg?v=1783972275","url":"https:\/\/crystalclassics.co.uk\/products\/gratonite","provider":"Crystal Classics UK","version":"1.0","type":"link"}