General Information:
Chemical Formula:PbCa3Zn4(SiO4)4
Composition:(Molecular Weight = 957.33 gm)Calcium 12.56 %
CaZinc 27.32 %
ZnSilicon 11.73 %
SiLead 21.64 %
PbOxygen 26.74 %
O Empirical Formula: PbCa3Zn4(SiO4)4
Environment:Metamorphosed zinc deposits associated with larsenite.
IMA Status:Approved IMA 1965
Locality:Franklin, Sussex Co., New Jersey, USA.
Physical Properties: Cleavage:[???] Indistinct
Color:white.
Density:4.421
Diaphaniety:Subtranslucent to opaque
Habits:Massive - Uniformly indistinguishable crystals forming large masses., ,
Hardness:5 - Apatite
Luminescence:Fluorescent.
Luster:Vitreous (Glassy)
Streak:white
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