Pigeonite Camara F, Carpenter M A, Domeneghetti M C, Tazzoli V American Mineralogist 88 (2003) 1115-1128 Coupling between non-convergent ordering and transition temperature in the C2/c - P2_1/c phase transition in pigeonite Sample: BTS-308 n.17-1, before heat treatment Locality: Parana, Brazil _database_code_amcsd 0003147 CELL PARAMETERS: 9.7160 8.9460 5.2520 90.000 108.490 90.000 SPACE GROUP: P2_1/c X-RAY WAVELENGTH: 1.541838 Cell Volume: 432.935 Density (g/cm3): 3.539 MAX. ABS. INTENSITY / VOLUME**2: 11.34990051 RIR: 1.044 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 13.80 2.75 6.4186 1 1 0 4 19.27 10.71 4.6072 2 0 0 2 20.00 11.53 4.4385 -1 1 1 4 20.41 3.74 4.3518 0 1 1 4 24.93 1.07 3.5714 1 1 1 4 26.48 1.69 3.3663 -1 2 1 4 26.79 17.07 3.3280 0 2 1 4 27.80 52.93 3.2093 2 2 0 4 29.60 100.00 3.0184 -2 2 1 4 30.62 41.80 2.9193 -3 1 1 4 30.78 47.34 2.9050 3 1 0 4 34.19 1.03 2.6228 -1 0 2 2 34.83 47.90 2.5758 -1 3 1 4 35.07 1.88 2.5585 0 3 1 4 36.06 50.52 2.4904 0 0 2 2 36.50 27.34 2.4615 2 2 1 4 37.32 4.52 2.4096 -2 3 1 4 38.00 3.33 2.3678 1 3 1 4 40.36 14.26 2.2346 3 1 1 4 40.40 3.72 2.2325 1 0 2 2 40.65 2.49 2.2193 -2 2 2 4 41.50 5.14 2.1759 0 2 2 4 41.70 8.54 2.1660 1 1 2 4 42.12 38.88 2.1452 -3 3 1 4 42.24 2.97 2.1395 3 3 0 4 42.74 7.64 2.1155 -4 2 1 4 43.82 1.96 2.0660 -3 2 2 4 44.23 3.64 2.0480 4 2 0 4 44.29 15.48 2.0450 -4 0 2 2 44.40 10.79 2.0403 0 4 1 4 45.06 5.43 2.0120 2 4 0 4 45.50 1.21 1.9936 -4 1 2 4 46.27 4.17 1.9623 -2 4 1 4 46.63 11.02 1.9476 2 0 2 2 48.69 1.67 1.8701 -4 3 1 4 49.97 3.17 1.8251 3 3 1 4 50.57 3.61 1.8050 5 1 0 4 51.11 1.83 1.7871 1 3 2 4 51.15 9.97 1.7857 2 2 2 4 51.27 2.11 1.7818 2 4 1 4 52.07 11.61 1.7564 1 5 0 4 52.92 2.88 1.7303 4 2 1 4 53.90 2.07 1.7011 -1 1 3 4 54.52 3.93 1.6831 -2 4 2 4 54.84 3.98 1.6739 -3 1 3 4 55.20 1.29 1.6640 0 4 2 4 55.32 4.85 1.6606 3 1 2 4 56.50 18.63 1.6288 -2 2 3 4 56.59 26.56 1.6263 -5 3 1 4 59.73 3.81 1.5482 -3 5 1 4 59.82 5.29 1.5460 3 5 0 4 59.90 6.82 1.5442 -6 0 2 2 60.26 6.01 1.5357 6 0 0 2 61.47 4.73 1.5086 -2 3 3 4 61.94 15.04 1.4981 -1 3 3 4 62.27 13.49 1.4910 0 6 0 2 62.81 2.46 1.4795 -3 3 3 4 62.88 1.19 1.4780 -1 5 2 4 63.07 5.48 1.4740 4 0 2 2 63.32 2.38 1.4688 2 4 2 4 63.76 3.30 1.4596 -6 2 2 4 64.08 1.74 1.4531 0 5 2 4 65.82 5.48 1.4189 -3 5 2 4 66.08 2.36 1.4140 3 5 1 4 67.03 1.89 1.3961 1 5 2 4 67.28 28.63 1.3917 5 3 1 4 68.05 3.41 1.3777 -2 4 3 4 68.17 5.20 1.3756 1 3 3 4 68.52 1.29 1.3695 -7 1 1 4 69.22 1.89 1.3573 2 2 3 4 69.37 1.90 1.3547 -7 0 2 2 70.27 6.90 1.3395 -7 1 2 4 70.64 4.91 1.3335 -5 3 3 4 70.66 1.42 1.3331 0 4 3 4 72.27 2.19 1.3073 -3 0 4 2 72.59 1.88 1.3023 7 1 0 4 73.13 1.20 1.2940 6 2 1 4 73.16 1.80 1.2936 -3 1 4 4 73.73 1.18 1.2850 3 1 3 4 73.78 1.77 1.2842 5 1 2 4 74.12 11.13 1.2793 0 6 2 4 74.20 4.43 1.2780 -4 0 4 2 75.56 1.31 1.2584 -2 2 4 4 76.03 1.33 1.2517 4 6 0 4 76.50 2.28 1.2452 0 0 4 2 77.33 1.66 1.2339 -3 5 3 4 77.73 7.35 1.2286 3 5 2 4 79.57 2.21 1.2048 -4 6 2 4 81.22 1.03 1.1843 -5 2 4 4 81.26 1.77 1.1839 2 6 2 4 82.17 1.15 1.1731 7 1 1 4 82.64 1.03 1.1676 -8 2 1 4 82.89 1.86 1.1646 -6 0 4 2 84.03 1.61 1.1518 8 0 0 2 89.56 1.49 1.0945 -8 2 3 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.