AM_Melilite_14
Formula: Ca1.87 Na.1 Sr.02 K.02 Mg.96 Al.09 Si1.98 O7
Name: Melilite
Unit cell: 7.852 7.852 5.019 90.0 90.0 90.0 , V=309.44
Space group: P-421M (113)

Bindi L , Bonazzi P , Physics and Chemistry of Minerals , 32 (2005) p.89-96, Incommensurate-normal phase transition in natural melilite:, an in situ high-temperature X-ray single-crystal study