AM_Pezzottaite Formula: Cs.75 Na.226 Al2 Be2 Li Si6 O18.285 H6 Name: Pezzottaite Unit cell: 15.955 15.955 27.81 90.0 90.0 120.0 , V=6130.91 Space group: R-3C (167)

Yakubivich O V , Pekov I V , Steele I M , Massa W , Chukanov N V , Crystallography Reports , 54 (2009) p.399-412, Alkali metals in beryl and their role in the formation of derivative structural motifs:, Comparative crystal chemistry of vorobyevite and pezzottaite, Locality: Sakavalana granitic pegmatite, Antsirabe, Fianarantsoa Province, Madagascar, Note: T = 100 K