Formula: MnSnTa2O8
Origin of name: after locality Wodgina, Marble Bar and Greenbushes, Western Australia, Australia
Crystal system: Monoclinic
Crystal class: 2/m
Twinning: Very common, as penetration twins with {001 or {100} as composition plane
Unit cell: a = 9.52, b = 11.47, c = 5.1, β = 91.3°
Colour: Reddish brown to dark brown to almost black
Diaphaneity: Opaque, translucent in tin fragments
Luster: Submetallic
Habit: Crystals tabular, rare, roughly tabular, sphenoidal, pyramidal or irregular grains, smaller than 1 to 10 mm, sometimes radiating groups
Hardness: about 6
Specific gravity: 7.19 to 7.36
Cleavage: None
Tenacity: Irregular fracture
Streak: Brown
Synonyms/varieties:
Comments:
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