Home / Explore / Minerals / Gutkovaite-Mn Minerals Gutkovaite-Mn gutkovaite-Mn CaK2Mn(Ti,Nb)4(Si4O12)2(O,OH)4·5H2O Gutkovaite-Mn archived mineral specimens — via www.dakotamatrix.com · Source Overview Gutkovaite-Mn is a mineral species (cyclosilicate mineral). Nickel–Strunz class: 9.CE.30h. Scientific references Gutkovaite-Mn — Wikidata. https://www.wikidata.org/wiki/Q3780013 Link