{"product_id":"calcite-with-chalcopyrite-section","title":"CALCITE with CHALCOPYRITE Section","description":"Black Ox mine is one of Derbyshire's lesser-known mineral localities, situated only about 1 km to the southwest of Matlock and a little north of Masson Hill, both familiar names in the world of mineralogy.  From Black Ox we have an unusual 1.6 cm thick, cleaved block of Calcite displaying a pale honey yellow translucent to semi-transparent outer crust with a large area of transparent, colourless Calcite surrounded distinct darkened zones of included micro-crystals of brassy Chalcopyrite.  A most fascinating and unusual Derbyshire specimen.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":57780981367119,"sku":"CC17244","price":74.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/3748\/2063\/files\/CC17244_9bcad8ac-a285-4b1f-8bad-ee0ae463a9d5.jpg?v=1783973458","url":"https:\/\/crystalclassics.co.uk\/products\/calcite-with-chalcopyrite-section","provider":"Crystal Classics UK","version":"1.0","type":"link"}