Ca2CoSi2O7 Kusaka K, Hagiya K, Ohmasa M, Okano Y, Mukai M, Iishi K, Haga N Physics and Chemistry of Minerals 28 (2001) 150-166 Determination of structures of Ca2CoSi2O7, Ca2MgSi2O7, and Ca2(Mg.55Fe.45)Si2O7 in incommensurate and normal phases and observation of diffuse streaks at high temperature Sample: T = 773 K Melilite group _database_code_amcsd 0008516 CELL PARAMETERS: 7.8815 7.8815 5.0387 90.000 90.000 90.000 SPACE GROUP: P-42_1m X-RAY WAVELENGTH: 1.541838 Cell Volume: 312.994 Density (g/cm3): 3.260 MAX. ABS. INTENSITY / VOLUME**2: 20.78449323 RIR: 2.076 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 17.60 15.17 5.0387 0 0 1 2 20.93 7.78 4.2453 1 0 1 8 23.81 36.87 3.7376 1 1 1 4 25.27 4.54 3.5247 2 1 0 8 28.76 58.38 3.1041 2 0 1 8 30.96 100.00 2.8882 2 1 1 8 32.12 12.62 2.7865 2 2 0 4 35.64 5.45 2.5194 0 0 2 2 36.04 35.76 2.4923 3 1 0 8 36.86 9.93 2.4385 2 2 1 4 37.48 6.14 2.3997 1 0 2 8 38.65 6.31 2.3295 3 0 1 8 39.24 4.41 2.2957 1 1 2 4 40.37 7.85 2.2340 3 1 1 8 44.19 11.50 2.0496 2 1 2 8 45.22 2.17 2.0054 3 2 1 8 46.07 1.75 1.9704 4 0 0 4 47.57 6.24 1.9115 4 1 0 8 48.73 9.95 1.8688 2 2 2 4 49.04 4.79 1.8577 3 3 0 4 49.68 2.59 1.8351 4 0 1 8 51.11 8.36 1.7873 4 1 1 8 51.58 31.88 1.7718 3 1 2 8 51.88 11.48 1.7624 4 2 0 8 52.50 7.15 1.7430 3 3 1 4 55.22 4.87 1.6635 4 2 1 8 55.67 2.29 1.6511 3 2 2 8 57.29 3.69 1.6081 1 1 3 4 59.84 1.76 1.5457 5 1 0 8 59.86 3.70 1.5451 2 0 3 8 61.12 3.96 1.5162 2 1 3 8 62.89 6.67 1.4777 5 1 1 8 64.53 3.40 1.4441 4 2 2 8 64.81 4.44 1.4385 2 2 3 4 66.02 2.23 1.4151 3 0 3 8 66.53 7.42 1.4055 5 2 1 8 67.19 3.97 1.3933 4 4 0 4 67.21 2.52 1.3928 3 1 3 8 69.55 1.88 1.3517 5 3 0 8 70.07 3.06 1.3429 4 4 1 4 70.47 1.15 1.3363 4 3 2 8 71.63 1.26 1.3175 5 1 2 8 71.87 3.77 1.3136 6 0 0 4 75.32 3.42 1.2617 4 1 3 8 75.47 1.46 1.2597 0 0 4 2 76.45 3.01 1.2459 3 3 3 4 78.44 1.49 1.2192 4 4 2 4 79.18 3.43 1.2097 6 2 1 8 80.29 1.69 1.1957 5 4 1 8 80.67 2.28 1.1911 5 3 2 8 82.88 2.76 1.1648 6 0 2 8 84.25 1.17 1.1494 4 3 3 8 84.39 1.27 1.1478 2 2 4 4 85.35 3.03 1.1374 5 1 3 8 86.59 2.26 1.1242 3 1 4 8 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.