AM_K2CuSi4O10 Formula: K2 Cu Si4 O10 Name: K2CuSi4O10 Unit cell: 11.285 8.244 11.065 90.0 110.94 90.0 , V=961.43 Space group: P121/M1 (11)

Kawamura K , Iiyama J T , Bulletin de Mineralogie , 104 (1981) p.387-395, Crystallochemistry and thermochemistry of sodipotassic copper silicate Na2-2xK2xCuSi4O10