Home / Explore / Minerals / Barwoodite Minerals Barwoodite barwoodite Mn²⁺6Nb5+(SiO4)2O3(OH)3 Barwoodite: Mineral information, data and localities. — via www.mindat.org · Source Overview Barwoodite is a mineral species (nesosilicate mineral). It crystallises in the trigonal system. Scientific references Barwoodite — Wikidata. https://www.wikidata.org/wiki/Q42303402 Link