General Information:
Chemical Formula:Pb9Ca5Mn++Si9O33
Composition:(Molecular Weight = 2,900.88 gm)Calcium 6.91 %
CaManganese 1.89 %
MnSilicon 8.71 %
SiLead 64.28 %
PbOxygen 18.20 %
O Empirical Formula: Pb9Ca5Mn2+Si9O33
Locality:Vermland, Sweden.
Physical Properties: Cleavage:[???] Good
Color:colorless, gray, or white.
Density:5.74
Diaphaniety:Translucent to transparent
Habits:Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline)., Massive - Granular - Common texture observed in granite and other igneous rock.,
Hardness:3 - Calcite
Luster:Vitreous - Adamantine
Streak:white
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