AM_Microsommite_1 Formula: Ca Cl1.12 Na2.01 K.99 S.44 O13.5 Si3 Al3 Name: Microsommite Unit cell: 12.871 12.871 5.371 90.0 90.0 120.0 , V=770.57 Space group: P63/M (176)

Bonaccorsi E , Comodi P , Merlino S , Physics and Chemistry of Minerals , 22 (1995) p.367-374, Thermal behaviour of davyne-group minerals, Sample: T = 943 K