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出典:Wiktionary
Named after Sierra de Umango (Argentina) + -ite.
umangite (uncountable)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/14 11:50 UTC 版)
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