AM_Gorceixite
Formula: Ba.882 Al3 P2 O14 H7
Name: Gorceixite
Unit cell: 7.0538 7.0538 17.2746 90.0 90.0 120.0 , V=744.36
Space group: R-3M (166)

Dzikowski T J , Groat L A , Jambor J L , The Canadian Mineralogist , 44 (2006) p.951-958, The symmetry and crystal structure of gorceixite, BaAl3[PO3(O,OH)]2(OH)6, a, member of the alunite supergroup, Locality: Rapid Creek area, Yukon Territory, Canada