{"product_id":"galena-with-sphalerite-and-calcite-1","title":"GALENA with SPHALERITE and CALCITE","description":"A magnificent cluster of excellent Galena spinel-twins from the Nikolaevskiy mine at Dal'negorsk in the Far-Eastern Region of Russia.  Adding to what is already an amazing specimen, large crystals of lustrous black spinel-twined Sphalerite and drusy clusters of creamy white Calcite add contrast and highlights to a wonderful aesthetic.  The highly lustrous Galena crystals measure up to at least 3 cm on edge and form a variety of habits including modified cuboctahedrons.  The Sphalerite is also superb displaying nested equilateral triangular growth patterns with a brilliant metallic lustre.  The Nikolaevskiy mine opened in 1982 working a limestone-hosted sulphide deposit.  Large solution cavities within the limestone have provided sufficient accommodation space to allow the development of world-class specimens making this one of the world's best crystallised sulphide localities.  A stunning Galena with Sphalerite and Calcite form Nikolaevskiy mine in Russia.  Please note an additional charge may have to be made for postage due to this specimen's weight.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":57781141373263,"sku":"CC21439","price":5551.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/3748\/2063\/files\/CC21439_b76876a3-8715-41b4-a893-32825bd0ca20.jpg?v=1783979163","url":"https:\/\/crystalclassics.co.uk\/products\/galena-with-sphalerite-and-calcite-1","provider":"Crystal Classics UK","version":"1.0","type":"link"}