Rhodocrosite Merlini M, Hanfland M, Gemmi M American Mineralogist 100 (2015) 2625-2629 The MnCO3-II high-pressure polymorph of rhodocrosite Note: Sample run2-p23 Note: P = 20.24 GPa Locality: Sardegna, Italy _database_code_amcsd 0020380 4.6624 4.6624 14.330 90 90 120 R-3c atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Mn1 0 0 0 .96 .0108 .0097 .0097 .0129 .0048 0 0 Ca1 0 0 0 .04 .0108 .0097 .0097 .0129 .0048 0 0 C1 0 0 .25 .0084 O1 .2728 0 .25 .0106 .0110 .015 .007 .0073 .0000 .0001