Formula: (Sn,Fe)(O,OH)2
Origin of name: after N. Varlamoff
Crystal system: Tetragoal
Crystal class: 4/m 2/m 2/m
Twinning:
Unit cell: a = 4.71, c = 3.13
Colour: Yellow, orange red
Diaphaneity: Translucent to opaque
Luster: Waxy
Habit:
Hardness: 6-6.5
Specific gravity: 2.52-2.61
Cleavage: None
Tenacity:
Streak: Light yellow
Synonyms/varieties: Souxite
Comments:
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