Formula: Pb3Bi2S6
Origin of name: After locality; Lillian mine, Leadville, Colorado
Crystal system: Orthorhombic
Crystal class: 2/m 2/m 2/m
Twinning:
Unit cell:
Colour: Steel-gray
Diaphaneity: Opaque
Luster: Metallic
Habit: Crystals platy, elongated; fibrous
Hardness: 2 to 3
Specific gravity: 7.06 to 7.14
Cleavage: None
Tenacity:
Streak: Black
Synonyms/varieties:
Comments: Series with gustavite
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