Anatase is one of the three natural crystal forms of titanium dioxide — a true rarity in faceted form. Its adamantine luster and steep dipyramidal crystals delight mineral collectors; gem-quality material, often deep blue to brown-black, mostly comes from Alpine clefts and Brazil. Hardness 5.5–6.GEMIC Institute offers natural anatase specimens certified by our own laboratory in Siem Reap, each photographed and filmed individually. Unique pieces, tracked worldwide shipping, 30-day inspection period.