Home / Explore / Minerals / Cryptophyllite Minerals Cryptophyllite cryptophyllite K2Ca[Si4O10]·5H2O Cryptophyllite: Mineral information, data and localities. — via www.mindat.org · Source Overview Cryptophyllite is a mineral species (silicate mineral). It crystallises in the monoclinic system. Scientific references Cryptophyllite — Wikidata. https://www.wikidata.org/wiki/Q19833358 Link