Formula: Cu5V2O10
Origin of name: for Richard Stoiber, American geologist
Crystal system: monoclinic
Crystal class: 2/m
Twinning:
Unit cell:
Colour: black, reddish brown on thin edges
Diaphaneity:
Luster: metallic
Habit: crystals platy to 100 micron, polycrystalline aggregates
Hardness:
Specific gravity: 4.96
Cleavage: none
Tenacity:
Streak: reddish brown
Synonyms/varieties:
Comments:
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