Home / Explore / Minerals / Byzantievite Minerals Byzantievite byzantievite Ba5(Ca,REE,Y)22(Ti,Nb)18(SiO4)4[(PO4),(SiO4)]4(BO3)9O22[(OH),F]43·1.5H2O Byzantievite: Mineral information, data and localities. — via www.mindat.org · Source Overview Byzantievite is a mineral species (phosphate-borate silicate mineral). It crystallises in the trigonal system. Scientific references Byzantievite — Wikidata. https://www.wikidata.org/wiki/Q19810709 Link