General Information:
Chemical Formula:
PbO2
Composition:
(Molecular Weight = 239.20 gm)
Lead 86.62 % Pb
Oxygen 13.38 % O
Empirical Formula:
PbO2
Locality:
Leadhills, Lanark, Scotland.
Name Origin:
Named after the German metallurgist, K. F. Plattner (1800-1858).
Physical Properties:
Cleavage:
None
Color:
brownish black, iron black, or black.
Density:
8.5 - 9.63, Average = 9.06
Diaphaniety:
Subtranslucent to opaque
Habits:
Massive - Uniformly indistinguishable crystals forming large masses., Encrustations - Forms crust-like aggregates on matrix.,
Hardness:
5.5 - Knife Blade
Luminescence:
None.
Luster:
Sub Metallic
Streak:
chestnut brown
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