Formula: WO3.H2O
Origin of name: from composition
Crystal system: orthorhombic
Crystal class: 2/m 2/m 2/m
Twinning:
Unit cell:
Colour: bright yellow, golden yellow, yellowish green
Diaphaneity: transparent
Luster: resinous
Habit: crystals platy, microscopic, massive, powdery to earthy
Hardness: 2.5
Specific gravity: 5.50 to 5.52
Cleavage: 2; {001} perfect, {110} imperfect
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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