K2Ca2(SO4)3 Speer D, Salje E Physics and Chemistry of Minerals 13 (1986) 17-24 Phase transitions in langbeinites I: Crystal chemistry and structures of K-double sulfates of the langbeinite type M2++K2(SO4)3, M++=Mg,Ni,Co,Zn,Ca Sample: K2Ca2(SO4)3, T = 260 C _database_code_amcsd 0007370 CELL PARAMETERS: 10.4289 10.4289 10.4289 90.000 90.000 90.000 SPACE GROUP: P2_13 X-RAY WAVELENGTH: 1.541838 Cell Volume: 1134.267 Density (g/cm3): 2.615 MAX. ABS. INTENSITY / VOLUME**2: 28.94692874 RIR: 3.605 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 14.71 3.12 6.0211 1 1 1 4 19.03 2.01 4.6639 2 1 0 12 20.86 17.02 4.2576 2 1 1 12 25.63 1.90 3.4763 2 2 1 12 27.04 50.08 3.2979 3 0 1 12 27.04 49.92 3.2979 3 1 0 12 28.38 6.58 3.1444 3 1 1 12 30.92 4.10 2.8925 3 2 0 12 32.11 16.37 2.7872 3 2 1 12 32.11 23.59 2.7872 3 1 2 12 35.49 1.40 2.5294 4 0 1 12 35.49 1.78 2.5294 3 2 2 12 37.59 1.87 2.3926 3 3 1 12 39.60 1.00 2.2758 4 1 2 12 40.57 4.94 2.2234 3 3 2 12 42.46 10.58 2.1288 4 2 2 12 44.29 6.38 2.0453 4 3 1 12 44.29 6.66 2.0453 4 1 3 12 46.92 2.74 1.9366 5 2 0 12 46.92 2.38 1.9366 4 2 3 12 50.26 4.04 1.8154 4 4 1 12 51.07 1.94 1.7885 5 3 0 12 54.22 4.97 1.6918 5 3 2 12 54.22 3.94 1.6918 5 2 3 12 54.22 4.76 1.6918 6 1 1 12 55.75 2.67 1.6490 6 0 2 12 55.75 1.88 1.6490 6 2 0 12 57.25 1.55 1.6092 5 4 1 12 59.46 1.07 1.5546 5 4 2 12 59.46 1.39 1.5546 6 3 0 12 60.18 1.58 1.5377 6 3 1 12 60.18 2.68 1.5377 6 1 3 12 61.61 1.55 1.5053 4 4 4 4 62.32 1.06 1.4898 6 2 3 12 65.80 1.05 1.4192 5 5 2 12 65.80 1.90 1.4192 7 1 2 12 67.17 1.42 1.3936 6 2 4 12 69.19 1.17 1.3577 7 1 3 12 77.69 1.27 1.2291 8 2 2 12 78.97 1.31 1.2123 7 4 3 12 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.