Formula: PbCuAl2(SO4)2(OH)6
Origin of name: after locality Osarizawa mine, Akita Prefect, Japan
Crystal system: hexagonal
Crystal class: -3 2/m
Twinning:
Unit cell: a = 7.05 Å, c = 17.03 Å
Colour: greenish yellow
Diaphaneity:
Luster: earthy
Habit: crystals minute, hexagonal outline, in friable aggregates
Hardness:
Specific gravity: 4.04
Cleavage:
Tenacity: brittle
Streak:
Synonyms/varieties:
Comments:
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