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Umangite

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.

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Category
Selenide mineral
Cleavage
Distinct on and
Color
Red, bluish red-black
Crystal class
Scalenohedral (42m) H-M symbol: (4 2m)
Crystal habit
Massive granular
Crystal system
Tetragonal

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Map overview Semantic statistics

Umangite

Nodes10
Edges9
Triples18
Avg. degree1.8
Density0.2
Components1

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Umangite

Top relations

Category · 1
Umangite → Selenide mineral
Cleavage · 1
Umangite → Distinct on and
Color · 1
Umangite → Red, bluish red-black
Crystal class · 1
Umangite → Scalenohedral (42m) H-M symbol: (4 2m)
Crystal habit · 1
Umangite → Massive granular
Crystal system · 1
Umangite → Tetragonal
Diaphaneity · 1
Umangite → Opaque
Formula · 1
Umangite → Cu3Se2
Formula mass · 1
Umangite → 348.56 g/mol
Fracture · 1
Umangite → Uneven

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Important terminology

copper occurs hardness also clausthalite selenide mineral cu3se2 granular group color black streak metallic luster references minerals argentina harz germany

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
UmangiteCategorySelenide mineral1.00infobox
UmangiteCleavageDistinct on and1.00infobox
UmangiteColorRed, bluish red-black1.00infobox
UmangiteCrystal classScalenohedral (42m) H-M symbol: (4 2m)1.00infobox
UmangiteCrystal habitMassive granular1.00infobox
UmangiteCrystal systemTetragonal1.00infobox
UmangiteDiaphaneityOpaque1.00infobox
UmangiteFormulaCu3Se21.00infobox
UmangiteFormula mass348.56 g/mol1.00infobox
UmangiteFractureUneven1.00infobox
UmangiteIMA symbolUm1.00infobox
UmangiteLusterMetallic1.00infobox
UmangiteMohs scale hardness31.00infobox
UmangiteSpace groupP421m1.00infobox
UmangiteSpecific gravity5.62–6.781.00infobox
UmangiteStreakBlack1.00infobox
UmangiteStrunz classification2.BA.15c1.00infobox
Umangiteis acopper selenide mineral0.90text

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