Umangite

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Umangite is a copper selenide mineral, Cu₃Se₂, discovered in 1891. It occurs only in small grains or fine granular aggregates with other copper minerals of the sulfide group. It has a hardness of 3. It is blue-black to red-violet in color with a black streak. It has a metallic luster.

Umangite is named after the locality of Sierra de Umango, La Rioja province in Argentina. It also occurs at other localities including the Harz Mountains in Germany, and at Skrickerum, Sweden.

[edit] See also

• List of minerals

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Retrieved from "http://en.wikipedia.org../../../u/m/a/Umangite.html"

Categories: Mineral stubs | Copper minerals | Selenide minerals

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• This page was last modified 18:41, 18 June 2006 by Wikipedia user YurikBot. Based on work by Wikipedia user(s) Jaraalbe, Sbisolo, Robotje, Vsmith, Dcfleck and Dlloyd and Anonymous user(s) of Wikipedia.
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