Home / Explore / Minerals / Gismondine-Sr Minerals Gismondine-Sr gismondine-Sr Sr4(Si8Al8O32)·9H2O Gismondine-Sr: Mineral information, data and localities. — via www.mindat.org · Source Overview Gismondine-Sr is a mineral species. It crystallises in the orthorhombic system. Scientific references Gismondine-Sr — Wikidata. https://www.wikidata.org/wiki/Q109301502 Link