General Information:
Chemical Formula:(UO2)(CO3)·n(H2O), (n=2?)
Composition:(Molecular Weight = 366.07 gm)Uranium 65.02 %
U Hydrogen 1.10 %
H Carbon 3.28 %
C Oxygen 30.59 %
O Empirical Formula: (UO2)(CO3)·2(H2O)
Environment:Occurs as crusts on "limonite" and barite at uranium deposits.
IMA Status:Approved IMA 1976
Locality:Menzenschwald, Schwarzwald, Germany.
Name Origin:Named in 1976 for J. Frederic Joliot (1900-1958), French physicist, and I. Joliot-Curie.
Physical Properties: Cleavage:[100] Distinct
Color:lemon yellow.
Density:4.55
Diaphaniety:Translucent
Habits:Spherical - Spherical, rounded aggregates., Scaly - Morphology like fish scales.,
Hardness:1.5-2 - Talc-Gypsum
Luminescence:Fluorescent and radioactive.
Streak:yellow
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