General Information:
Chemical Formula:
PbCa3Zn4(SiO4)4
Composition:
(Molecular Weight = 957.33 gm)
Calcium 12.56 % Ca
Zinc 27.32 % Zn
Silicon 11.73 % Si
Lead 21.64 % Pb
Oxygen 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
More details...