General Information:
Chemical Formula:Pb10Cu(CrO4)6(SiO4)2(F,OH)2
Composition:(Molecular Weight = 3,052.68 gm)Chromium 10.22 %
CrCopper 2.08 %
CuSilicon 1.84 %
SiHydrogen 0.02 %
H Lead 67.87 %
PbOxygen 17.03 %
O Fluorine 0.93 %
F Empirical Formula: Pb10Cu(CrO4)6(SiO4)2F1.5(OH)0.5
IMA Status:Approved IMA 1963
Physical Properties: Color:brownish yellow, yellow, or honey brown.
Density:5.8
Hardness:3 - Calcite
Luster:Vitreous (Glassy)
Streak:yellow
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