Meisserite
A variety of Minerals
What is Meisserite?
Meisserite is a very rare uranium mineral with the formula Na5(UO2)(SO4)3(SO3OH)(H2O). It is interesting in being a natural uranyl salt with hydrosulfate (hydroxysulfate) anion, a feature shared with belakovskiite. 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, USA.The mineral is named after Swiss mineralogist Nicolas Meisser.
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Meisserite Localities Map
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Key Characteristics
Composition of Meisserite
The crystal structure of meisserite is unique. The building elements include: pentagonal bipyramids of uranyl groups SO4 groups These elements link to form chains. Sodium cations are bonded to oxygen atoms in chains, to hydrosulfate groups and water.
Quick Facts
Physical Properties
- Color
- Pale green to yellowish green
- Hardness (Mohs)
- 2
- Density
- 3.208 g/cm³
- Streak
- Very pale yellow
Chemical Properties
- Chemical Formula
- Na5(UO2)(SO4)3(SO3OH)(H2O)
- Elements
- H, Na, O, S, U

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