Friday, December 14, 2012

Magnesium sulfate


These are samples of magnesium sulfate crystals that are grown is a dendritic form. They were formed at temperatures near freezing point. After the phase diagram of Epsom, Hexahydrate and Kieserite (all are different forms of magnesium sulfates the species depends on temperature und moisture), it must be Epsom (MgSO4•7H2O).


Epsom (Magnification 40 x) in dark field and under polarized light


Epsom (Magnification 40 x) in polarized light


Epsom (Magnification 40 x)







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