AM_Pyrochlore_5
Formula: Nb2 Ca2 O6 F
Name: Pyrochlore
Unit cell: 10.3947 10.3947 10.3947 90.0 90.0 90.0 , V=1123.15
Space group: FD3M (227)

Perrault G , The Canadian Mineralogist , 9 (1968) p.383-402, La composition chimique et la structure cristalline du pyrochlore d Oka, P.Q., Sample: No. 4