General Information:
Chemical Formula:
Bi+++6Te++++2O13
Composition:
(Molecular Weight = 1,717.07 gm)
Bismuth 73.02 % Bi
Tellurium 14.86 % Te
Oxygen 12.11 % O
Empirical Formula:
Bi6Te2O13
Environment:
In the oxidation zone of a small gold deposit.
IMA Status:
Approved IMA
Locality:
At Yangjiava, Pinggu County, near Beijing, People's Republic of China.
Name Origin:
Named after its locality.
Physical Properties:
Cleavage:
None
Color:
yellowish green.
Density:
8.44 - 8.64, Average = 8.53
Diaphaniety:
Transparent
Habits:
Granular - Generally occurs as anhedral to subhedral crystals in matrix., Columnar - Forms columns,
Hardness:
5.5-6 - Knife Blade-Orthoclase
Luster:
Vitreous - Greasy
Streak:
light yellowish green
More details...