AM_Cesstibtantite Formula: Sb.57 Na.31 Pb.02 Bi.01 (Ta1.88 Nb.12) O6.19 F.5 Cs.31 H.5 Name: Cesstibtantite Unit cell: 10.515 10.515 10.515 90.0 90.0 90.0 , V=1162.59 Space group: FD3M (227)

Ercit T S , Cerny P , Hawthorne F C , Mineralogy and Petrology , 48 (1993) p.235-255, Cesstibtantite - a geologic introduction to the inverse pyrochlores, Locality: Leshaia pegmatite, Kola Peninsula, Russia, Sample: KO-1