AM_Pyroxene-ideal_59 Formula: Mg Si O3 Name: Pyroxene-ideal Unit cell: 19.595919 6.0 3.4641016 90.0 90.0 90.0 , V=407.29 Space group: P1C1 (7)
Thompson R M , Downs R T , American Mineralogist , 88 (2003) p.653-666, Model pyroxenes I: Ideal pyroxene topologies, Pyroxene #40b based on stacking sequence ABABACACBABC, Note: Atoms Mg, Si, and O are assigned to atomic positions just for convenience.