{"product_id":"calcite-130","title":"CALCITE","description":"This spectacular stack of stepped Calcite rhombohedra covers an area of about 11 x 8 cm over a mainly hidden matrix of typical dark greenish-grey and brick-red Dolomitic matrix from Tsumeb mine in Namibia.  Individual Calcite crystals are typically between 1 and 1.5 cm on edge, but some are developed to over 2 cm.  The largest crystal sits dead in the centre and most crystals have slightly rounded edges forming a bevelled appearance.  Almost all the Calcites are transparent, the exceptions being a little cloudy and hence semi-transparent.  They have a brilliant glassy lustre and along one long edge all the crystal faces on the underside are included with very finely disseminated Hematite (the most likely candidate) which impart a beautiful pinkish-red glow along this side.  A delightful and most attractive well-crystallised Calcite from the world famous mine at Tsumeb.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":57781130264911,"sku":"CC20547","price":5551.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/3748\/2063\/files\/CC20547_e5d33eb5-2f00-4e0e-bc71-137fd4c296b8.jpg?v=1783978592","url":"https:\/\/crystalclassics.co.uk\/products\/calcite-130","provider":"Crystal Classics UK","version":"1.0","type":"link"}