Norsethite Effenberger H, Zemann J Zeitschrift fur Kristallographie 171 (1985) 275-280 Single crystal X-Ray investigation of norsethite, BaMg(CO3)2: one more mineral with an aplanar carbonate group Locality: synthetic Sample: Model 3 _database_code_amcsd 0010926 5.022 5.022 16.770 90 90 120 R-3m atom x y z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Ba 0 0 0 .0113 .0113 .0159 .00565 0 0 Mg 0 0 .5 .0095 .0095 .014 .00475 0 0 C 0 0 .2392 .0109 .0109 .013 .0054 0 0 O .174 -.118 .2416 .5 .025 .029 .025 .022 -.005 -.008