AM_Cejkaite Formula: Na4 U C3 O11 Name: Cejkaite Unit cell: 9.291 9.292 12.895 90.73 90.82 120.0 , V=963.75 Space group: P-1 (2)

Ondrus P , Skala R , Veselovsky F , Sejkora J , Vitti C , American Mineralogist , 88 (2003) p.686-693, Cejkaite, the triclinic polymorph of Na4(UO2)(CO3)3 - a new mineral, from Jachymov, Czech Republic