Home / Explore / Minerals / Greenwoodite Minerals Greenwoodite greenwoodite Ba2-ₓ(V³⁺OH)ₓV³⁺9(Fe³⁺,Fe²⁺)2Si2O22 Greenwoodite: Mineral information, data and localities. — via www.mindat.org · Source Overview Greenwoodite is a mineral species (nesosilicate mineral). It crystallises in the trigonal system. Scientific references Greenwoodite — Wikidata. https://www.wikidata.org/wiki/Q19841397 Link