{"product_id":"dioptase-on-mottramite","title":"DIOPTASE   on MOTTRAMITE","description":"This is a really unusual combination of species for Tsumeb mine, and in a display-worthy cabinet-sized specimen too. A hard grey limestone rock matrix forming a shallow dome-like form is coated uniformly with a thin microcrystalline layer of murky-green, to leaf-green Mottramite, terminated by a dull greyish surface coating. Upon this are scattered thousands of bright sparkling emerald-green Dioptase crystals. Although small (1 to 1.5 mm in size), these are perfectly formed and make a superb display, contrasting with the dull Mottramite layer below. Ex Weyand collection.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":57781463908687,"sku":"CC52732","price":296.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/3748\/2063\/files\/CC52732_dfd4f37e-3c5b-4656-a2e8-68d525caae49.jpg?v=1783989743","url":"https:\/\/crystalclassics.co.uk\/products\/dioptase-on-mottramite","provider":"Crystal Classics UK","version":"1.0","type":"link"}