Formula: FeSnTa2O8
Origin of name: From ferrous iron (Fe2+) and wodginite
Crystal system: Monoclinic
Crystal class: 2/m
Twinning:
Unit cell:
Colour: Dark brown to black
Diaphaneity: Transparent to translucent
Luster: Vitreous
Habit: Anhedral grains to 0.3 mm
Hardness: 5.5
Specific gravity:
Cleavage: None
Tenacity:
Streak: Dark brown
Synonyms/varieties:
Comments: Ferrous iron (Fe2+) analogue of wodginite
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