Formula: Ru
Origin of name: from Latin Ruthenia = Russia
Crystal system: hexagonal
Crystal class: 6/m 2/m 2/m
Twinning:
Unit cell:
Colour: white to cream
Diaphaneity: opaque
Luster:
Habit: a tabular crystal, 7 by 35 micron
Hardness: 6.5
Specific gravity: 12.20
Cleavage: none
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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