Huntite Dollase W A, Reeder R J American Mineralogist 71 (1986) 163-166 Crystal structure refinement of huntite, CaMg3(CO3)4, with X-ray powder data _database_code_amcsd 0001006 9.5027 9.5027 7.8212 90 90 120 R32 atom x y z Biso Ca 0 0 0 .94 Mg .5443 0 0 .94 C1 0 0 .5 .94 C2 .4535 0 .5 .94 O1 .8663 0 .5 .94 O2 .5895 0 .5 .94 O3 .4569 .1355 .5161 .94