{"product_id":"siegenite-on-chalcopyrite","title":"SIEGENITE on CHALCOPYRITE","description":"For the collector of rare species, a nice example of Siegenite with Chalcopyrite from Victoria mine at Littfeld in Siegerland, North Rhine-Westphalia, Germany.  Like many other specimens, this was labelled as Linnaeite (not Linarite), but modern analysis has shown this to be Siegenite, a cobalt nickel sulphide, with no known presence of Linnaeite  at this locality.  Linnaeite is both a divalent and trivalent cobalt sulphide.  The Siegenite forms as slightly iridescent octagonal crystals  lining a larger vug on one side and a small vug at one end, each framed by massive and semi-crystalline Chalcopyrite.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":57781199044943,"sku":"CC27825","price":296.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/3748\/2063\/files\/CC27825_275a4f4f-affd-4b40-89c5-5bc7ca95652a.jpg?v=1783981534","url":"https:\/\/crystalclassics.co.uk\/products\/siegenite-on-chalcopyrite","provider":"Crystal Classics UK","version":"1.0","type":"link"}