General Information:
Chemical Formula:
Na2Ca(UO2)(CO3)3·6(H2O)
Composition:
(Molecular Weight = 644.20 gm)
Sodium 7.14 % Na
Calcium 6.22 % Ca
Uranium 36.95 % U
Hydrogen 1.88 % H
Carbon 5.59 % C
Oxygen 42.22 % O
Empirical Formula:
Na2Ca(UO2)(CO3)3·6(H2O)
Environment:
Sandstone-hosted uranium deposits.
Locality:
Hillside mine, Bagdad, Yavapai County, Arizona, USA.
Name Origin:
Named for Charles Alfred Anderson (1902-1990), U. S. Geological Survey.
Physical Properties:
Color:
bright yellow green or green.
Density:
2.79 - 2.87, Average = 2.83
Diaphaniety:
Transparent to Translucent
Habits:
Druse - Crystal growth in a cavity which results in numerous crystal tipped surfaces., Rhombohedral Crystals - Occurs as well-formed crystals showing rhobohedral crystals., Pseudo Cub ic - Crystals show a cubic outline.
Hardness:
2.5 - Finger Nail
Luminescence:
Fluorescent, Short UV=bright yellow green, Long UV=bright yellow green.
Luster:
Vitreous - Pearly
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