AM_SiC-IV
Formula: Si7 C7
Name: SiC-IV
Unit cell: 3.073 3.073 52.78 90.0 90.0 120.0 , V=431.64
Space group: R3M (160)

Ramsdell L S , American Mineralogist , 29 (1944) p.431-442, The crystal structure of alpha-SiC, type IV