Basis data mineral & terapi kristalMineralHewettiteLeon Hupperichs·CC BY-SA 3.0·WikimediaHewettiteCaV5⁺6O16·9H2OMonoclino IMA grandfatheredKomposisiComposizione (% in peso)OVCaOOxygen78.6%VVanadium10.0%CaCalcium7.9%HHydrogen3.6%EtimologiDinamai dari Donnel F. Hewett.
