{"product_id":"hubnerite-sonora-mexico-copy","title":"Melanovanadite- Minas Ragra, Peru (Type Locality)","description":"\u003cp\u003eMelanovanadite- \u003cbr\u003eMinas Ragra, Peru (Type Locality)\u003cbr\u003eDimensions: Vial measuring 5.3 x 2.0 cm filled with small specimens\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003eAn uncommon vintage example of melanovanadite from the historic Peruvian locality where the species was first described. Dark brown-black, fine-grained to velvety melanovanadite is preserved in its original-style specimen vial and accompanied by an aged collection card, catalog no. 338. Melanovanadite is an unusual hydrated calcium vanadium oxide containing both V⁴⁺ and V⁵⁺ and was first described from Minas Ragra in 1921.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThis specimen's real attraction is therefore mineralogical rather than aesthetic. Melanovanadite is an obscure species associated with vanadium-rich deposits, and Minas Ragra is particularly important in mineral history for its extraordinary suite of vanadium minerals.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eCard note: The vintage card identifies it as melanovanadite from “Junasa, Junin Province,” but that wording appears to be an old or erroneous rendering of Minas Ragra (Minasragra), Peru.\u003c\/p\u003e","brand":"The Crystalary","offers":[{"title":"Default Title","offer_id":47924525236355,"sku":"barry338-dr1-1of3","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0390\/4634\/8931\/files\/IMG_54032.jpg?v=1787111283","url":"https:\/\/www.thecrystalary.com\/products\/hubnerite-sonora-mexico-copy","provider":"The Crystalary","version":"1.0","type":"link"}