{"product_id":"cassiterite-on-quartz","title":"CASSITERITE   on  QUARTZ","description":"Although only a large thumbnail, the Cassiterite attached to a single Quartz crystal forms an exquisite stellate repeated set of twinned crystals.  From Horn' Slavkov in the Vary Region of the Czech Republic, the symmetrically twinned cassiterite crystals form a pentagonal star.  The Cassiterite is jet black with a brilliant metallic lustre and is attached to the base of a 1.5 cm long colourless Quartz crystal which becomes more transparent towards its termination.  A beautiful and most pleasing twinned Czech Cassiterite.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":57781038907727,"sku":"CC19941","price":703.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/3748\/2063\/files\/CC19941_84b59526-a1c7-44dc-870a-bfa73f20a259.jpg?v=1783977607","url":"https:\/\/crystalclassics.co.uk\/products\/cassiterite-on-quartz","provider":"Crystal Classics UK","version":"1.0","type":"link"}