Formula: Ag3Pb4Bi5S13
Origin of name: after locality Ouray, Colorado, USA
Crystal system: orthorhombic
Crystal class: 2/m 2/m 2/m
Twinning:
Unit cell:
Colour: galena-white (polished section)
Diaphaneity: opaque
Luster:
Habit: crystals lath-like, to 0.1 mm
Hardness:
Specific gravity: 7.11
Cleavage: none
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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