Formula: Pb2PbO4
Origin of name: From Iberian for cinnabar
Crystal system: Tetragonal
Crystal class: 4/m 2/m 2/m
Twinning:
Unit cell:
Colour: Scarlet red to brownish red
Diaphaneity: Opaque
Luster: Dull to somewhat greasy
Habit: Massive, earthy or powdery
Hardness: 2.5
Specific gravity: 8.9 to 9.2
Cleavage: 1; {110} perfect
Tenacity:
Streak: Orange-yellow
Synonyms/varieties:
Comments:
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