Belakovskiite
A variety of Minerals
What is Belakovskiite?
Belakovskiite is a very rare uranium mineral with the formula Na7(UO2)(SO4)4(SO3OH)(H2O)3. It is interesting in being a natural uranyl salt with hydrosulfate anion, a feature shared with meisserite. Other chemically related minerals include fermiite, oppenheimerite, natrozippeite and plášilite. Most of these uranyl sulfate minerals was originally found in the Blue Lizard mine, San Juan County, Utah, US. The mineral is named after Russian mineralogist Dmitry Ilych Belakovskiy.
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Belakovskiite Localities Map
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Key Characteristics
Composition of Belakovskiite
The framework of belakovskiite crystal structure is a hexavalent cluster with composition (UO2)(SO4)4(H2O). Such clusters are connected via Na-O and hydrogen bonds.
Quick Facts
Physical Properties
- Color
- yellow green
- Hardness (Mohs)
- 2
- Density
- 2.953 g/cm³
- Streak
- White
Chemical Properties
- Chemical Formula
- Na7(UO2)(SO4)4(SO3OH)(H2O)3
- Elements
- H, Na, O, S, U
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