AM_Billietite_1 Formula: Ba U6 O30 H6 Name: Billietite Unit cell: 12.0941 30.211 7.1563 90.0 90.0 90.0 , V=2614.73 Space group: PBN21 (33)

Finch R J , Burns P C , Hawthorne F C , Ewing R C , The Canadian Mineralogist , 44 (2006) p.1197-1205, Refinement of the crystal structure of billietite, Ba [(UO2)6 O4 (OH)6] (H2O)8, Locality: Shaba, Democratic Republic of Congo