Formula: BiO(OH,Cl)
Origin of name: For Gabriel A. Daubree, French mineralogist
Crystal system: Tetragonal
Crystal class: 4/m 2/m 2/m
Twinning:
Unit cell:
Colour: Yellowish
Diaphaneity:
Luster: Dull
Habit: Massive, earthy
Hardness: 2 to 2.5
Specific gravity: 7.56
Cleavage: 1; {001} perfect
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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