General Information:
Chemical Formula:
Bi2(CO3)O2
Composition:
(Molecular Weight = 509.97 gm)
Bismuth 81.96 % Bi
Carbon 2.36 % C
Oxygen 15.69 % O
Empirical Formula:
Bi2(CO3)O2
Environment:
Alteration product of bismuthinite and native bismuth.
Locality:
Middlesex, Tasmania.
Physical Properties:
Cleavage:
[001] Distinct
Color:
brown, brownish yellow, green, gray, or yellow.
Density:
7
Diaphaniety:
Transparent to Translucent
Habits:
Fibrous - Crystals made up of fibers., Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite).,
Hardness:
4 - Fluorite
Luminescence:
Non-fluorescent.
Luster:
Vitreous - Pearly
Streak:
gray
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