Base de minerales y cristaloterapiaMineralesMeta-alunogenDavid Hospital·CC BY-SA 4.0·WikimediaMeta-alunogenAl2(SO4)3·14H2OOrtorombico crown IMA questionableComposiciónComposizione (% in peso)OSAlOOxygen70.0%SSulfur16.2%AlAluminium9.1%HHydrogen4.7%