AM_Petersenite-(Ce)
Formula: Na4 Ce2 C5 O15
Name: Petersenite-(Ce)
Unit cell: 20.872 6.367 10.601 90.0 120.5 90.0 , V=1213.85
Space group: P1211 (4)

Grice J D , Velthuizen J V , Gault R A , The Canadian Mineralogist , 32 (1994) p.405-414, Petersenite-(Ce), a new mineral from Mont Saint-Hilaire, and its structural, relationship to other REE carbonates, Locality: Mont Saint-Hilaire, Quebec, Canada