Mohrite
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| Mohrite | |
|---|---|
 A close up of the yellowish microcrystals of the mohrite mineral | |
| General | |
| Category | Minerals |
| Formula | (NH4)2Fe(SO4)2·6 H2O |
Mohrite, (NH4)2Fe(SO4)2·6 H2O, is a rare ammonium iron(II) sulfate mineral originally found in the geothermal fields of Tuscany, Italy.[1] This Fe-dominant analogue of boussingaultite is sometimes reported from burning coal dumps where it is a product of pyrite oxidation.[2][3][4]
The mineral crystallizes in the monoclinic crystal system with space group P21/a.[5]