{"product_id":"pyromorphite-on-coronadite-1","title":"PYROMORPHITE on CORONADITE","description":"A magnificent cabinet specimen of lime and oil green Pyromorphite crystals on black Coronadite from the MMM mine at Broken Hill in New South Wales, Australia.  The approximately 9 x 8 cm triangular display face is three-quarters covered with delicate acicular Pyromorphite crystals and a roughly 3 x 3 cm uncovered area of silvery black Coronadite.  The Pyromorphite distinctly divides into two phases or groups: smaller, fine acicular yellowish lime green crystals and larger, oil green hexagonal prisms, typically with simple hopper terminations.  The smaller crystals average, say, 2 to 3 mm while the larger are about 8 mm, with taller exceptions.  Coronadite is a lead-manganese oxide-hydroxide.  Both Pyromorphite and Coronadite are well-known minerals from the Broken Hill mines.  Many micro-crystals of Pyromorphite covering the area of Coronadite are coated in a thin black film of Coronadite.  A very fine cabinet specimen of lime and oil green Pyromorphite on Coronadite from the MMM mine at Broken Hill.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":57781163721039,"sku":"CC23352","price":5921.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/3748\/2063\/files\/CC23352_10ac20c4-f00c-4c4f-a926-811f8ba3e0a2.jpg?v=1783979923","url":"https:\/\/crystalclassics.co.uk\/products\/pyromorphite-on-coronadite-1","provider":"Crystal Classics UK","version":"1.0","type":"link"}