General Information:
Chemical Formula:
Na2(UO2)2V2O8·6(H2O)
Composition:
(Molecular Weight = 924.00 gm)
Sodium 4.98 % Na
Uranium 51.52 % U
Vanadium 11.03 % V
Hydrogen 1.31 % H
Oxygen 31.17 % O
Empirical Formula:
Na2UO22V4+2O8·6(H2O)
Environment:
Carbonacous-siliceous shales. Na analogue of carnotite.
IMA Status:
Approved IMA 1974
Locality:
Russia.
Name Origin:
Named for M. F. Strelkin (1905-1965), mineralogist interested in uranium ores, Russia.
Physical Properties:
Cleavage:
[001] Perfect
Color:
golden yellow or canary yellow.
Density:
4 - 4.2, Average = 4.09
Habits:
Powdery - Forms a loose, poorly-coherent pulverulent mass., Encrustations - Forms crust-like aggregates on matrix.,
Hardness:
2.5 - Finger Nail
Luminescence:
Fluorescent, Short UV=light green.
Luster:
Silky - Pearly
Streak:
light yellow
More details...