{"product_id":"cobaltkoritnigite-with-erythrite","title":"COBALTKORITNIGITE   with ERYTHRITE","description":"The mines at Bou Azzer in Morocco have undoubtedly produced the world's finest Erythrite crystals but they have produced some of the best Cobaltkoritnigite specimens too. The former is a hydrated cobalt arsenate and the latter - hydrated cobalt arsenite hydroxide - indicating a very slight shift in the geochemical conditions during growth within the supergene secondary environment. This lovely brightly coloured miniature specimen features very glossy deep pink-purple bladed monoclinic Erythrite crystals (to 3.5 mm long) lining a  1.4 x 1.4 cm open cavity in heavily oxidized Skutterudite. Alongside this cavity - and actually infilling a much larger cavity - is more Erythrite, but also finely crystallized silky bubblegum-pink acicular Cobaltkoritnigite in areas extending to 1.4 x 1 cm. Under magnification this Cobaltkoritnigite is extremely well-crystallized and world-class in extent and quality. A very pretty rarity from the superb systematic collection assembled by the brothers Martin and Michael Günther (1951-2007 \u0026amp; 1956-2021).","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":46545394041007,"sku":"CC27719","price":1500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/8516\/2671\/files\/CC27719.png?v=1770388834","url":"https:\/\/crystalclassics.com\/products\/cobaltkoritnigite-with-erythrite","provider":"Crystal Classics","version":"1.0","type":"link"}