General Information:
Chemical Formula:
Pb10Zn(CrO4)6(SiO4)2F2
Composition:
(Molecular Weight = 3,055.52 gm)
Zinc 2.14 % Zn
Chromium 10.21 % Cr
Silicon 1.84 % Si
Lead 67.81 % Pb
Oxygen 16.76 % O
Fluorine 1.24 % F
Empirical Formula:
Pb10Zn(CrO4)6(SiO4)2F2
IMA Status:
Approved IMA 1967
Physical Properties:
Color:
orange, brown, or black.
Density:
6.42
Hardness:
3 - Calcite
Luster:
Vitreous (Glassy)
Streak:
saffron
More details...