{"product_id":"very-special-goethite-with-black-iron-siderite","title":"Very Special, Goethite With Black Iron Siderite","description":"From Kayseri, Turkey \n15*18*9cm\n2,620kg\n\nThis very rare specimen from Kayseri, Turkey features naturally formed goethite associated with striking black iron siderite, creating a dramatic and highly collectible mineral combination. The deep, dark tones and contrasting textures give the piece a powerful visual presence.\n\nFormed through complex geological and oxidation processes, the specimen displays rich surface detail, depth, and authentic natural coloration. The coexistence of goethite with black iron siderite in this quality is uncommon, adding significant value for serious collectors.\n\nHighly desirable for advanced mineral collections, museum-style displays, or curated high-end showcases, this specimen represents one of the more exceptional mineral formations from the Kayseri region. A truly rare and distinctive piece.","brand":"Crystal Gemstone AE","offers":[{"title":"Default Title","offer_id":52116920434969,"sku":null,"price":400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0987\/7215\/6697\/files\/29eca762-il_fullxfull.7704334201_nlf0.jpg?v=1773659105","url":"https:\/\/crystalgemstoneae.com\/products\/very-special-goethite-with-black-iron-siderite","provider":"Crystal Gemstone AE","version":"1.0","type":"link"}