{"product_id":"tyrolite-tangdanite-erythrite-and-azurite","title":"TYROLITE, TANGDANITE ERYTHRITE and AZURITE","description":"A highly brecciated specimen interwoven with fracture and pore-filled copper and cobalt mineralisation.  The specimen contains Tyrolite, Tangdanite, Erythrite and Azurite and is from the Geyer-Silberberg District in the Brixlegg-Schwaz Area of North Tyrol, Austria.  The mineral Tangdanite was formerly named Clinotyrolite.  The Azurite and Erythite are readily identified in the specimen, being their characteristic blue and cobalt-pink.  The distinction between Tyrolite and Tangdanite is very difficult however, as they are both greenish-blue with a somewhat radial, fibrous structure.  Tyrolite is a hydrated calcium copper arsenate carbonate whereas Tangdanite is essentially Tyrolite with sulphate rather than carbonate.  Both species are present although not individually discernible.  Nonetheless, a terrific specimen.  ","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":46542960001199,"sku":"CC10556","price":1500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/8516\/2671\/files\/CC10556.png?v=1770296389","url":"https:\/\/crystalclassics.com\/products\/tyrolite-tangdanite-erythrite-and-azurite","provider":"Crystal Classics","version":"1.0","type":"link"}