umangite
Sign in to saveUmangite 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.
Key facts
- Mineral.color
- Red, bluish red-black
- Mineral.name
- Umangite
- Mineral.category
- Selenide mineral
- Mineral.image
- Umangite-Clausthalite-202047.jpg
- Mineral.caption
- Umangite (purple) on clausthalite. Other copper selenides (green secondaries) and likely chalcomenite (non-metallic blue)
- Mineral.formula
- Cu3Se2
- Mineral.IMAsymbol
- Um
- Mineral.molweight
- 348.56 g/mol
- Mineral.strunz
- 2.BA.15c
- Mineral.habit
- Massive granular
- Mineral.system
- Tetragonal
- Mineral.class
- Scalenohedral (2m) H-M symbol: ( 2m)
- Mineral.symmetry
- P21m
- Mineral.cleavage
- Distinct on [010] and [001]
- Mineral.fracture
- Uneven
- Mineral.mohs
- 3
- Mineral.luster
- Metallic
- Mineral.streak
- Black
via Wikipedia infobox
Wikidata facts
- Image
- Umangite-Clausthalite-202047.jpg
Show 6 more facts
- Nickel-Strunz 9th edition (updated 2009)
- 2.BA.15c
- Commons category
- Umangite
- chemical formula
- Cu₃Se₂
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 2.BA.25
- IMA Mineral Symbol
- Um
- Strunz 8th edition (series ID, updated)
- II/A.02 – Anhang
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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.