Dolomite Ross N L, Reeder R J American Mineralogist 77 (1992) 412-421 High-pressure structural study of dolomite and ankerite P = 0.00 GPa _database_code_amcsd 0001453 4.8064 4.8064 16.006 90 90 120 R-3 atom x y z Biso CaA 0 0 0 0.71 MgB 0 0 .5 0.50 C 0 0 .2431 0.73 O .2482 -.0357 .2440 0.84