Formula: Cu2Sb2(O,OH)7
Origin of name: for A. Partz, mineral chemist
Crystal system: cubic
Crystal class: 4/m -3 2/m
Twinning:
Unit cell:
Colour: olive-green, tarnishes black
Diaphaneity:
Luster:
Habit: massive
Hardness: 3 to 4
Specific gravity: 2.96 to 3.96
Cleavage: none
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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