Balyakinite

General Information:
 Chemical Formula:
CuTeO3
 Composition:
(Molecular Weight = 239.14 gm)
Copper 26.57 % Cu
Tellurium 53.36 % Te
Oxygen 20.07 % O 
 Empirical Formula:
Cu(TeO3)
 IMA Status:
Approved IMA 1980
Physical Properties:
 Cleavage:
None
 Color:
blue green or gray green.
 Density:
5.64
 Hardness:
3.5 - Copper Penny
 Streak:
light blue green
More details...