General Information:
Chemical Formula:
PbAl(UO2)5(PO4)2(OH)9·9.5(H2O)
Composition:
(Molecular Weight = 2,098.47 gm)
Uranium 56.71 % U
Aluminum 1.29 % Al
Phosphorus 2.95 % P
Hydrogen 1.34 % H
Lead 9.87 % Pb
Oxygen 27.83 % O
Empirical Formula:
PbAl(UO2)5(PO4)2(OH)9·9.5(H2O)
IMA Status:
Approved IMA 1983
Locality:
Kobokobo, Kivu, Zaire.
Name Origin:
Named for the mining district at the locality.
Physical Properties:
Cleavage:
[010] Perfect, [001] Perfect
Color:
yellow.
Density:
4.03
Diaphaniety:
Transparent
Habits:
Platy - Sheet forms (e.g. micas)., ,
Hardness:
2-3 - Gypsum-Calcite
Luminescence:
Non-fluorescent.
Streak:
yellow white
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