{"product_id":"columbite-1","title":"COLUMBITE","description":"Columbite, an iron-niobium oxide, in this rather gorgeous miniature, forms a blocky prism with myriads of millimetre scale mini-prisms adhering to its two opposite broad faces.  The crystal is opaque metallic black with what appears to be a cleaved base but could be a variant form of a matt lustre face, indicated by concentric growth patterns.  The pinacoid termination is perfectly flat and mirror smooth.  From Minas Gerais State in Brazil, a really excellent example of a Columbite crystal.\n","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":46545297932463,"sku":"CC21826","price":1600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/8516\/2671\/files\/CC21826.png?v=1770379092","url":"https:\/\/crystalclassics.com\/products\/columbite-1","provider":"Crystal Classics","version":"1.0","type":"link"}