General Information:
Chemical Formula:
Pb10(SO4)Cl2O8
Composition:
(Molecular Weight = 2,366.96 gm)
Lead 87.54 % Pb
Sulfur 1.35 % S
Chlorine 3.00 % Cl
Oxygen 8.11 % O
Empirical Formula:
Pb10(SO4)Cl2O8
IMA Status:
Approved IMA 1979
Locality:
Amerika stope, Langban, Varmland, Sweden.
Name Origin:
Named for Nils Sundius (1886-1976), Swedish mineralogist.
Physical Properties:
Cleavage:
[100] Perfect
Color:
colorless or white.
Density:
7
Habits:
Plumose - "Mica-like" minerals forming aggregates of plume-like forms., Aggregates - Made of numerous individual crystals or clusters.,
Hardness:
3 - Calcite
Luminescence:
Non-fluorescent.
Luster:
Adamantine
Streak:
white
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