Formula: Pb10(CO3)6O(OH)6
Origin of name: from Latin plumbum = lead and French nacre = mother-of-pearl
Crystal system: hexagonal
Crystal class: unknown
Twinning:
Unit cell: a = 9.076, c = 24.96
Colour: Colourless, white, gray
Diaphaneity: Transparent to translucent
Luster: Adamantine
Habit:
Hardness: 3.5
Specific gravity: 7.07
Cleavage: none
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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