Formula: VO(OH)2
Origin of name: For C. Dutton, American geologist
Crystal system: Monoclinic
Crystal class: 2/m
Twinning:
Unit cell: a = 8.8, b = 3.95, c = 5.96, β = 90.67°
Colour: Pale brown
Diaphaneity: Opaque
Luster:
Habit: Crystals platy, six-sided, minute; crusts and coatings
Hardness: ~ 2.5
Specific gravity: 3.24
Cleavage: 1; {100} distinct
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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