Formula: H2W O4 . H2O
Origin of name: From Greek hydor - water and tungstite
Crystal system: Monoclinic
Crystal class: 2/m
Twinning:
Unit cell:
Colour: Dark green to yellowish green
Diaphaneity:
Luster: Vitreous to dull
Habit: Crystals tabular, submicroscopic; reticulated intergrowths, minute
Hardness: ~2
Specific gravity: 4.60
Cleavage: 1; {010} imperfect
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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