Home / Explore / Minerals / Donwilhelmsite Minerals Donwilhelmsite donwilhelmsite CaAl4Si2O11 New Mineral Discovered in Lunar Meteorite: Donwilhelmsite | Geology ... — via www.sci.news · Source Overview Donwilhelmsite is a mineral species (silicate mineral). It crystallises in the hexagonal system. Scientific references Donwilhelmsite — Wikidata. https://www.wikidata.org/wiki/Q61484286 Link