AM_Chayesite_1 Formula: K.93 Na.31 (Mg4.3 Fe.7) Si12 O30 Name: Chayesite Unit cell: 10.122 10.122 14.32 90.0 90.0 120.0 , V=1270.59 Space group: P6/MCC (192)

Alietti E , Brigatti M F , Capedri S , Poppi L , Mineralogical Magazine , 58 (1994) p.655-662, The roedderite-chayesite series from Spanish lamproites:, crystal chemical characterization, Locality: Cancarix, Albacete province, Spain