Formula: Cu3(As, V)S4
Origin of name: From arsenic and compositional relationship to sulvanite
Crystal system: Cubic
Crystal class: -43m
Unit cell: a = 5.257 Å
Colour: Bronze-yellow
Diaphaneity: Opaque
Habit: Tiny grains, anhedral to subhedral crystals in a matrix
Hardness: 3.5
Specific gravity: 4.01 to 4.2
Cleavage: None
Streak: Black
Synonyms/varieties:
Comments: Series with sulvanite. Found in quartz-calcite veins cutting bituminous limestone, also in a copper porphyry deposit
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