Abernathyite

Abernathyite (or Abernathyit or Abernathyita) K2(UO2)2[AsO4]2·6H2O is a mineral of potassium, uranium, oxygen, arsenic, and hydrogen. It is named after Jess Abernathy, a mine operator. Its Mohs scale rating is 2.5.
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General Information:
 Chemical Formula:
K(UO2)(AsO4)·4(H2O)
 Composition:
(Molecular Weight = 520.11 gm)
Potassium 7.52 % K 
Uranium 45.77 % U 
Arsenic 14.41 % As
Hydrogen 1.55 % H 
Oxygen 30.76 % O 
 Empirical Formula:
K(UO2)(AsO4)·4(H2O)
 Locality:
TL: USA, UT, Emery Co, Temple Mtn
Physical Properties:
 Cleavage:
[???] Perfect
 Color:
yellow.
 Density:
3.31 - 3.57, Average = 3.44
 Diaphaniety:
Transparent
 Hardness:
2-3 - Gypsum-Calcite
 Luminescence:
Fluorescent.
 Luster:
Vitreous (Glassy)
 Streak:
yellow
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