General Information:
Chemical Formula:Pb4Zn2(SiO4)(Si2O7)(SO4)
Composition:(Molecular Weight = 1,315.89 gm)Zinc 9.94 %
ZnSilicon 6.40 %
SiLead 62.98 %
PbSulfur 2.44 %
S Oxygen 18.24 %
O Empirical Formula: Pb4Zn2(SiO4)(Si2O7)(SO4)
IMA Status:Approved IMA 1979
Physical Properties: Cleavage:[010] Indistinct, [001] Indistinct
Color:colorless, white, or light yellow.
Density:6.07
Hardness:4 - Fluorite
Luster:Greasy (Oily)
Streak:white
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