Rhodocrosite Merlini M, Hanfland M, Gemmi M American Mineralogist 100 (2015) 2625-2629 The MnCO3-II high-pressure polymorph of rhodocrosite Note: Sample run2-p19 Note: P = 16.42 GPa Locality: Sardegna, Italy _database_code_amcsd 0020376 4.6775 4.6775 14.528 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 .0142 .0144 .0144 .014 .0072 0 0 Ca1 0 0 0 .04 .0142 .0144 .0144 .014 .0072 0 0 C1 0 0 .25 .012 O1 .2696 0 .25 .015 .009 .018 .021 .009 -.0001 .000