Wiktionary
mohrite
n. (context mineralogy English) A monoclinic-prismatic light green mineral containing hydrogen, hydrogen, iron, nitrogen, oxygen, and sulfur.
Wikipedia
Mohrite
Mohrite, (NH)Fe(SO)ยท6(HO), is a rare sulfate mineral originally found in the geothermal fields of Tuscany, Italy. This Fe-dominant analogue of boussingaultite is sometimes reported from burning coal dumps.