General Information:
Chemical Formula:
Ca3Mg3(UO2)2(CO3)6(OH)4·18(H2O)
Composition:
(Molecular Weight = 1,485.56 gm)
Calcium 8.09 % Ca
Magnesium 4.91 % Mg
Uranium 32.05 % U
Hydrogen 2.71 % H
Carbon 4.85 % C
Oxygen 47.39 % O
Empirical Formula:
Ca3Mg3(UO2)2(CO3)6(OH)4·18(H2O)
Environment:
Mine wall efflorescence.
Locality:
Lucky Strick No. 2 mine, Emery County, Utah, USA.
Name Origin:
Named for John Charles Rabbitt (1907-1957), geologist with the U. S. Geological Survey.
Physical Properties:
Cleavage:
[001] Perfect, [???] Perfect, [???] Perfect
Color:
pale green or greenish yellow.
Density:
2.57 - 2.6, Average = 2.58
Habits:
Efflorescences - Crystals covering matrix, generally produced from transpiro-evaporation., Fibrous - Crystals made up of fibers., Acicular - Occurs as needle-like crystals.
Hardness:
2.5 - Finger Nail
Luminescence:
Fluorescent.
Luster:
Silky
More details...