Daubreeite

General Information:
 Chemical Formula:
BiO(OH,Cl)
 Composition:
(Molecular Weight = 246.60 gm)
Bismuth 84.75 % Bi
Hydrogen 0.31 % H 
Chlorine 3.59 % Cl
Oxygen 11.35 % O 
 Empirical Formula:
BiO(OH)0.75Cl0.25
Physical Properties:
 Cleavage:
[001] Perfect
 Color:
yellow, yellow brown, or cream white.
 Density:
7.56
 Diaphaniety:
Transparent to Translucent
 Hardness:
2-2.5 - Gypsum-Finger Nail
 Luster:
Earthy (Dull)
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