AM_Chambersite Formula: Mn3 B7 O13 Cl Name: Chambersite Unit cell: 8.678 8.688 12.29 90.0 90.0 90.0 , V=926.60 Space group: PCA21 (29)

Kubel F , Crottaz O , Zeitschrift fur Kristallographie , 211 (1996) p.924-924, Crystal structure of manganese chlorine boracite, Mn3B7O13Cl, Locality: synthetic