AM_Chayesite_2 Formula: K.85 Na.29 (Mg4.2 Fe.8) Si12 O30 Name: Chayesite Unit cell: 10.128 10.128 14.312 90.0 90.0 120.0 , V=1271.39 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