Formula: Pb11CrO16
Origin of name: after locality Mina Santa Ana, Caracoles, Chile
Crystal system: hexagonal
Crystal class: 622
Twinning:
Unit cell:
Colour: straw-yellow
Diaphaneity:
Luster:
Habit: platelets to 0.5 mm, in drusy aggregates
Hardness: about 4
Specific gravity:
Cleavage: 3; {0001} perfect, {1210, {1010} rare
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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