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gunningite

n. (context mineral English) A rare mineral in the kieserite group, having the chemical formula (Zn,Mn2+)SO4·H2O.

Wikipedia
Gunningite

Gunningite is one of the minerals in the Kieserite group. Its chemical formula is (Zn,Mn)SO·HO. Its name honours Henry Cecil Gunning (1901–1991) of the Geological Survey of Canada and a Professor at the University of British Columbia, Vancouver, Canada.