AM_Francisite Formula: Bi Cu3 Se2 Cl O8 Name: Francisite Unit cell: 6.354 9.63 7.22 90.0 90.0 90.0 , V=441.78 Space group: PMMN (59)

Pring A , Gatehouse B M , Birch W D , American Mineralogist , 75 (1990) p.1421-1425, Francisite, Cu3Bi(SeO3)2O2Cl, a new mineral from Iron Monarch, South Australia:, Description and crystal structure