AM_Augelite
Formula: Al2 P O7 H3
Name: Augelite
Unit cell: 13.124 7.988 5.066 90.0 112.25 90.0 , V=491.55
Space group: C12/M1 (12)

Araki T , Finney J J , Zoltai T , American Mineralogist , 53 (1968) p.1096-1103, The crystal structure of augelite