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Euxenite or euxenite-Y is a brownish black mineral with a metallic luster. It contains calcium, niobium, tantalum, cerium, titanium, yttrium, and typically uranium and thorium, with some other metals. The chemical formula is: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6. It occurs in granite pegmatites and detrital black sands. It is commonly partially amorphous due to radiation damage.
Additional recommended knowledge
It is found in many locations worldwide, notably its type locality in Jolster, Sondfjord, Norway. Other locations include include the Ural Mountains of Russia; Sweden; Minas Gerais, Brazil; Ampangabe, Madagascar; Ontario, Canada; and in Arizona, Wyoming and Colorado in the U. S. A.
Euxenite is used as an ore of the rare earth elements it contains. Rare large crystals have also been used in jewelry.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Euxenite". A list of authors is available in Wikipedia.|