Kutnohorite Peacor D R, Essene E J, Gaines A M American Mineralogist 72 (1987) 319-328 Petrologic and crystal-chemical implications of cation order-disorder in kutnahorite (CaMn(CO3)2) Sample: Bald Knob kutnahorite Note: B(1,2) for MnA/CaA has been altered to match symmetry constraints. Note: B(1,1) and B(2,2) for CaB/MnB have been corrected. _database_code_amcsd 0001069 CELL PARAMETERS: 4.8732 4.8732 16.3490 90.000 90.000 120.000 SPACE GROUP: R-3 X-RAY WAVELENGTH: 1.541838 Cell Volume: 336.241 Density (g/cm3): 3.181 MAX. ABS. INTENSITY / VOLUME**2: 33.37724403 RIR: 3.417 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 23.73 18.44 3.7500 0 1 2 6 30.45 100.00 2.9360 1 0 4 6 36.89 17.22 2.4366 1 1 0 6 40.56 8.54 2.2244 2 -1 3 6 40.56 8.85 2.2244 1 1 3 6 44.33 16.73 2.0432 2 0 2 6 48.55 8.18 1.8750 0 2 4 6 49.56 19.23 1.8393 0 1 8 6 50.23 11.68 1.8163 1 1 6 6 50.23 12.08 1.8163 2 -1 6 6 58.10 1.29 1.5876 3 -1 1 6 58.10 1.25 1.5876 2 1 1 6 59.00 5.49 1.5656 -1 3 2 6 59.00 5.40 1.5656 1 2 2 6 60.75 1.62 1.5245 1 0 10 6 62.50 3.67 1.4860 3 -1 4 6 62.50 3.71 1.4860 2 1 4 6 63.36 3.22 1.4680 2 0 8 6 63.92 1.17 1.4564 1 1 9 6 63.92 1.20 1.4564 2 -1 9 6 66.46 7.75 1.4068 3 0 0 6 68.92 3.44 1.3624 0 0 12 2 73.24 2.53 1.2924 0 2 10 6 75.63 1.85 1.2574 -1 3 8 6 75.63 1.93 1.2574 1 2 8 6 80.83 1.25 1.1891 2 -1 12 6 80.83 1.33 1.1891 1 1 12 6 84.94 1.37 1.1417 2 1 10 6 84.94 1.42 1.1417 3 -1 10 6 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.