鉱物データベースとクリスタルセラピー鉱物AmmoniomagnesiovoltaiteAmmoniomagnesiovoltaite(NH4)2Mg5Fe3⁺3Al(SO4)12·18H2OCubico crown IMA approved構成Composizione (% in peso)OSMgOOxygen61.5%SSulfur22.4%MgMagnesium7.1%FeIron3.3%HHydrogen2.6%NNitrogen1.6%AlAluminium1.6%語源名前の由来 ammonium cation.