X-Nico

unusual facts about sulfate mineral



Magnesium sulfate

It is often encountered as the heptahydrate sulfate mineral epsomite (MgSO4ยท7H2O), commonly called Epsom salt, taking its name from a bitter saline spring in Epsom in Surrey, England, where the salt was produced from the springs that arise where the porous chalk of the North Downs meets non-porous London clay.


see also

Mina, Nevada

Thenardite, a sodium sulfate mineral, Na2SO4, found at Sodaville