{"product_id":"kottigite-with-gypsum","title":"KÖTTIGITE   with GYPSUM","description":"Köttigite is a rare, hydrated zinc arsenate and occurs on this fine miniature as long tabular prismatic crystals of acicular habit with a mottled patchy mix of cream and bluish-grey-green.  Rich rosettes of Köttigite crystals to about 1 cm in diameter coat a sandy coloured micro-porous matrix mixed with encapsulated Köttigite sprays.  A 2.2 x 1.2 cm colourless translucent blade of Gypsum lies flat across the specimen with a lustre of brushed silk.  An excellent example of this zinc rare arsenate from Mapimí in Mun. de Mapimí, Durango, Mexico.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":46545292951727,"sku":"CC21204","price":500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/8516\/2671\/files\/CC21204.png?v=1770378598","url":"https:\/\/crystalclassics.com\/products\/kottigite-with-gypsum","provider":"Crystal Classics","version":"1.0","type":"link"}