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Kieserite
Kieserite
is the
magnesium sulfate
mineral
(MgSO
4
·H
2
O) and is named after
Dietrich Georg von Kieser
(Jena, Germany 1862). It has a vitreous luster and it is colorless, grayish-white or yellowish. Its hardness is 3.5 and crystallizes in the
monoclinic
crystal system
.
Gunningite
is the zinc member of the kieserite group of minerals.
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