Kutnohorite Graf D L American Mineralogist 46 (1961) 1283-1316 Crystallographic tables for the rhombohedral carbonates Note: Disordered model Locality: synthetic _database_code_amcsd 0000106 4.8797 4.8797 16.367 90 90 120 R-3c atom x y z occ Ca 0 0 0 .5 Mn 0 0 0 .5 C 0 0 .25 O .2635 0 .25