AM_Cerchiaraite Formula: Ba4 Mn4 Si6 Cl O25 Name: Cerchiaraite Unit cell: 14.215 14.215 6.126 90.0 90.0 90.0 , V=1237.86 Space group: I4/MMM (139)

Basso R , Lucchetti G , Zefiro L , Palenzona A , Neues Jahrbuch fur Mineralogie, Monatshefte , 2000 (2000) p.373-384, Cerchiaraite, a new natural Ba-Mn-mixed-anion silicate chloride from, the Cerchiara mine, northern Apennines, Italy, Locality: Cerchiara mine, Va di Vara, northern Apennines, Italy