Uramarsite

(NH₄)(UO₂)(AsO₄)·3H₂O

Tetragonale crown IMA approved

Skład

Composizione (% in peso)

U

O

As

UUranium49.5%
OOxygen29.9%
AsArsenic15.6%
NNitrogen2.9%
HHydrogen2.1%

Etymologia

Nazwany na cześć ammonium cation.

Czakry wtórne