Formula: (Mn,Fe)7SbAsO12
Origin of name: From composition (antimonium - stibium)
Crystal system: Orthorhombic
Crystal class: 2/m 2/m 2/m
Twinning:
Unit cell:
Colour: Black
Diaphaneity: Opaque
Luster: Greasy
Habit: Embedded grains, may have crystals outlines
Hardness:
Specific gravity: 4.949
Cleavage: None
Tenacity:
Streak: Chocolate brown
Synonyms/varieties:
Comments:
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