Hydrated normal sulphate, kieserite group, forms a solid solution series with szomolnokite
Specific gravity: 2.571
Colour: Colourless, greyish white, yellowish, colourless in transmitted light
Kieserite occurs typically in marine salt deposits, and rarely as a volcanic sublimate or efflorescence.
Associated minerals include halite,
epsomite and celestine
At the type locality, Stassfurt, Stassfurt Potash deposit, Saxony-Anhalt, Germany, kieserite occurs in a salt deposit of oceanic origin, associated with halite (Mindat).
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