AM_Huntite
Formula: Ca Mg3 C4 O12
Name: Huntite
Unit cell: 9.5027 9.5027 7.8212 90.0 90.0 120.0 , V=611.64
Space group: R32 (155)

Dollase W A , Reeder R J , American Mineralogist , 71 (1986) p.163-166, Crystal structure refinement of huntite, CaMg3(CO3)4, with X-ray powder data