Albrechtschraufite

General Information:
 Chemical Formula:
Ca4Mg(UO2)2(CO3)6F2·17(H2O)
 Composition:
(Molecular Weight = 1,428.98 gm)
Calcium 11.22 % Ca
Magnesium 1.70 % Mg
Uranium 33.31 % U 
Hydrogen 2.40 % H 
Carbon 5.04 % C 
Oxygen 43.67 % O 
Fluorine 2.66 % F 
 Empirical Formula:
Ca4Mg(UO2)2(CO3)6F2·17(H2O)
 IMA Status:
Approved IMA
 Locality:
TL: Czech Rep, Jachymov, Zapadocesky
Physical Properties:
 Color:
yellow green.
 Density:
2.6
 Hardness:
2-3 - Gypsum-Calcite
 Luster:
Vitreous (Glassy)
 Streak:
white
More details...