Hermannjahnite is a rare sulfate mineral with the relatively simple formula CuZn(SO4)2. It is one of many fumarolic minerals discovered on the Tolbachik volcano.Siidra, O.I., Nazarchuk, E.V., Agakhanov, A.A., Lukina, E.A., Vergasova, L.P., Filatov, S.K., Pekov, I.V., Karpov, G.A., and Yapaskurt, V.O., 2015. Hermannjahnite, IMA2015-050. CNMNC Newsletter No. 27, October 2015, 1225; Mineralogical Magazine79, 1229–1236
Relation to other minerals Hermannjahnite is a zinc-analogue of dravertite – another mineral from prolific Tolbachik. Minerals somewhat chemically similar to hermannjahnite include ktenasite and christelite.
References
External links Hermannjahnite on Mindat: