AM_Buddingtonite_2 Formula: N D4 (Al Si3) O8 Name: Buddingtonite Unit cell: 8.83157 13.08541 7.20024 90.0 116.147 90.0 , V=746.94 Space group: C12/M1 (12)

Mookherjee M , Redfern S A T , Swainson I , Harlov D E , Physics and Chemistry of Minerals , 31 (2004) p.643-649, Low-temperature behaviour of ammonium ion in buddingtonite, [N(D/H)4AlSi3O8] from neutron powder diffraction, Sample: T = 280 K