Formula: Pb4O3Cl2
Origin of name: For Damara sequence of dolostones, Kombat mine, Tsumeb, Namibia
Crystal system: Orthorhombic
Crystal class: mm2 or 2/m 2/m 2/m
Twinning:
Unit cell:
Colour: Colourless
Diaphaneity: Transparent
Luster: Adamantine
Habit: Subhedral grains 150 x 200 µm
Hardness: 3
Specific gravity:
Cleavage: 1; {010} good
Tenacity:
Streak: White
Synonyms/varieties:
Comments:
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