AM_Stellerite_4 Formula: Ca.92 (Si6.876 Al2.124) O27.05 H38 Name: Stellerite Unit cell: 13.61 18.214 17.833 90.0 90.0 90.0 , V=4420.67 Space group: FMMM (69)

Sacerdoti M , Gomedi I , Bulletin de Mineralogie , 107 (1984) p.799-804, Crystal structural refinement of Ca-exchanged barrerite, Note: made from natural barrierite in the lab, Locality: Capo Pula, Sardegna, Italy