Home / Explore / Minerals / Nickelpicromerite Minerals Nickelpicromerite nickelpicromerite K2Ni(SO4)2·6H2O Nickelpicromerite: Mineral information, data and localities. — via zh.mindat.org · Source Overview Nickelpicromerite is a mineral species (sulfate mineral). It crystallises in the monoclinic system. Scientific references Nickelpicromerite — Wikidata. https://www.wikidata.org/wiki/Q19861067 Link