{"product_id":"fluorite-with-calcite-10","title":"FLUORITE with CALCITE","description":"Blackdene mine, close to the village of Ireshopeburn in County Durham, is one of Weardale's most famous mines because of its world-class purple Fluorite specimens.  The mine is known to have been worked during the 1400s and only stopped operating in 1987.  This delightful small cabinet specimen consists of a matrix plate completely covered with lustrous and glassy, sharp cubic lilac-purple Fluorite crystals up to 2.5 cm on edge, but more typically averaging about 1 cm.  Occasional milky-white Calcite crystals accompany the Fluorite.  The Fluorite shows good daylight fluorescence; is bright blue-white with pale pink Calcite in LWUV and dull blue-white in SWUV. A great Fluorite from Blackdene mine.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":46543064236207,"sku":"CC13999","price":2500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/8516\/2671\/files\/CC13999.png?v=1770306051","url":"https:\/\/crystalclassics.com\/products\/fluorite-with-calcite-10","provider":"Crystal Classics","version":"1.0","type":"link"}