Rhodocrosite Merlini M, Hanfland M, Gemmi M American Mineralogist 100 (2015) 2625-2629 The MnCO3-II high-pressure polymorph of rhodocrosite Note: Sample run1-p5 Note: P = 30.48 GPa Locality: Sardegna, Italy _database_code_amcsd 0020346 4.6301 4.6301 13.830 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 .0191 .0160 .0160 .0252 .0080 0 0 Ca1 0 0 0 .04 .0191 .0160 .0160 .0252 .0080 0 0 C1 0 0 .25 .014 O .2704 0 .25 .023 .015 .026 .031 .013 .0030 .006