AM_Paralstonite Formula: Ba Ca C2 O6 Name: Paralstonite Unit cell: 8.692 8.692 6.148 90.0 90.0 120.0 , V=402.26 Space group: P321 (150)

Effenberger H , Neues Jahrbuch fur Mineralogie, Monatshefte , 1980 (1980) p.353-363, Die kristallstruktur des minerals paralstonite, BaCa(CO3)2, Locality: Cave-in-Rock District, Illinois, USA