AM_Protasite Formula: U3 Ba O14 Name: Protasite Unit cell: 12.2949 7.2206 6.9558 90.0 90.401 90.0 , V=617.50 Space group: P1N1 (7)

Pagoaga M K , Appleman D E , Stewart J M , American Mineralogist , 72 (1987) p.1230-1238, Crystal structures and crystal chemistry of the uranyl oxide hydrates, becquerelite, billietite, and protasite, Locality: Shinkolobwe mine, Shaba, Zaire