AM_Shannonite Formula: Pb2 C O4 Name: Shannonite Unit cell: 5.1465 9.014 9.315 90.0 90.0 90.0 , V=432.13 Space group: P212121 (19)

Krivovichev S V , Burns P C , Mineralogical Magazine , 64 (2000) p.1063-1068, Crystal chemistry of basic lead carbonates. I. Crystal structure of synthetic, shannonite, Pb2O(CO3), Locality: synthetic