Feldspar Tribaudino M, Benna P, Bruno E American Mineralogist 83 (1998) 159-166 Structural variations induced by thermal treatment in lead feldspar (PbAl2Si2O8) Sample: PbF_H136h, split Pb site _database_code_amcsd 0001960 CELL PARAMETERS: 8.4180 13.0760 14.3650 90.000 115.280 90.000 SPACE GROUP: I2/c X-RAY WAVELENGTH: 1.541838 Cell Volume: 1429.780 Density (g/cm3): 4.137 MAX. ABS. INTENSITY / VOLUME**2: 31.37998476 RIR: 2.470 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 13.46 1.59 6.5784 1 1 0 4 13.54 95.50 6.5380 0 2 0 2 13.63 33.19 6.4946 0 0 2 2 15.23 70.97 5.8184 -1 1 2 4 19.26 42.95 4.6077 0 2 2 4 21.44 3.21 4.1454 -2 0 2 2 22.51 22.90 3.9500 1 1 2 4 23.37 32.72 3.8059 2 0 0 2 23.52 20.11 3.7824 1 3 0 4 24.59 38.64 3.6196 -1 3 2 4 25.44 44.23 3.5010 -2 2 2 4 25.73 90.45 3.4630 -1 1 4 4 27.11 100.00 3.2892 2 2 0 4 27.28 1.89 3.2690 0 4 0 2 27.46 15.31 3.2485 -2 0 4 2 27.47 23.61 3.2473 0 0 4 2 29.75 58.09 3.0031 1 3 2 4 30.62 24.49 2.9200 0 4 2 4 31.93 1.63 2.8028 2 0 2 2 32.30 46.76 2.7716 -1 3 4 4 32.67 6.27 2.7414 -3 1 2 4 34.83 6.61 2.5761 2 2 2 4 34.95 36.30 2.5669 -2 4 2 4 35.02 28.82 2.5620 -3 1 4 4 35.04 27.61 2.5608 1 1 4 4 36.06 8.57 2.4908 3 1 0 4 36.22 7.88 2.4798 2 4 0 4 37.06 14.31 2.4260 -1 5 2 4 38.04 4.91 2.3653 -2 0 6 2 38.17 9.51 2.3580 -3 3 2 4 38.69 8.24 2.3272 -1 1 6 4 40.24 14.49 2.2409 -3 3 4 4 40.26 11.38 2.2401 1 3 4 4 40.56 10.47 2.2242 -2 2 6 4 40.80 16.03 2.2116 1 5 2 4 41.17 1.39 2.1928 3 3 0 4 41.43 13.60 2.1793 0 6 0 2 41.72 3.09 2.1649 0 0 6 2 42.30 4.81 2.1366 -3 1 6 4 42.48 6.29 2.1278 2 4 2 4 42.77 9.31 2.1141 -1 5 4 4 43.47 7.95 2.0818 -4 0 2 2 43.54 3.98 2.0787 -1 3 6 4 43.67 2.30 2.0727 -4 0 4 2 43.69 2.83 2.0718 2 0 4 2 43.82 5.97 2.0661 0 6 2 4 44.06 14.26 2.0553 3 1 2 4 44.06 7.29 2.0551 0 2 6 4 45.74 9.14 1.9836 -4 2 2 4 45.93 5.77 1.9758 -4 2 4 4 45.95 7.97 1.9750 2 2 4 4 46.84 6.43 1.9395 -3 3 6 4 47.11 4.86 1.9290 -2 6 2 4 47.44 3.34 1.9163 -2 4 6 4 47.55 3.07 1.9124 -3 5 2 4 47.80 9.34 1.9030 4 0 0 2 48.11 1.31 1.8912 2 6 0 4 48.35 5.27 1.8824 -4 0 6 2 48.47 9.84 1.8781 3 3 2 4 48.91 3.82 1.8624 1 1 6 4 49.30 7.18 1.8483 -3 5 4 4 49.31 6.59 1.8479 1 5 4 4 49.91 1.98 1.8271 4 2 0 4 50.09 1.53 1.8210 3 5 0 4 50.42 1.24 1.8098 -2 6 4 4 50.43 2.82 1.8096 0 6 4 4 50.45 1.58 1.8090 -4 2 6 4 50.57 10.41 1.8050 0 4 6 4 50.85 14.78 1.7956 -2 0 8 2 50.86 1.64 1.7953 -1 7 2 4 52.08 9.43 1.7559 -4 4 2 4 52.88 4.68 1.7315 -2 2 8 4 53.83 1.07 1.7029 1 7 2 4 55.05 4.05 1.6681 -5 1 4 4 55.06 5.74 1.6680 -3 5 6 4 55.08 3.46 1.6674 3 1 4 4 55.44 4.03 1.6572 -1 7 4 4 55.91 1.97 1.6446 4 4 0 4 56.28 3.10 1.6345 0 8 0 2 56.51 7.42 1.6285 3 5 2 4 56.67 1.77 1.6243 -4 0 8 2 56.69 1.14 1.6237 0 0 8 2 56.76 1.22 1.6220 -1 3 8 4 57.50 1.53 1.6027 -2 6 6 4 57.68 2.38 1.5981 -5 1 6 4 58.56 7.28 1.5763 -4 2 8 4 58.58 6.65 1.5758 0 2 8 4 58.66 1.37 1.5738 -2 4 8 4 58.86 3.65 1.5691 -5 3 4 4 58.88 3.08 1.5685 3 3 4 4 59.12 5.27 1.5628 2 2 6 4 60.26 3.69 1.5359 0 6 6 4 60.97 2.30 1.5195 -3 7 4 4 60.98 2.37 1.5193 1 7 4 4 61.30 1.08 1.5122 5 1 0 4 61.38 6.55 1.5104 -5 3 6 4 61.61 5.09 1.5053 -4 6 2 4 61.77 8.37 1.5019 2 8 0 4 63.46 1.18 1.4659 -1 7 6 4 63.90 1.26 1.4569 -5 1 8 4 63.93 2.80 1.4563 1 1 8 4 64.01 1.77 1.4546 -4 4 8 4 64.03 1.48 1.4542 0 4 8 4 64.54 6.66 1.4439 2 4 6 4 64.88 2.30 1.4372 5 3 0 4 65.07 3.36 1.4334 4 6 0 4 65.52 1.39 1.4246 -4 6 6 4 65.67 1.05 1.4217 -3 1 10 4 66.72 2.90 1.4019 -6 0 4 2 66.75 3.32 1.4014 4 0 4 2 67.36 1.74 1.3902 3 7 2 4 67.60 3.43 1.3858 -2 6 8 4 68.42 3.01 1.3711 -5 5 6 4 69.12 1.12 1.3589 -3 3 10 4 69.50 1.58 1.3525 -4 2 10 4 69.55 2.29 1.3516 5 1 2 4 69.83 3.47 1.3468 -1 9 4 4 69.96 1.29 1.3447 -2 8 6 4 70.81 2.97 1.3306 -6 2 2 4 71.63 3.85 1.3174 -1 3 10 4 72.09 1.17 1.3102 -2 4 10 4 72.34 1.72 1.3063 -6 0 8 2 72.38 1.55 1.3057 2 0 8 2 72.92 2.40 1.2973 5 3 2 4 73.09 1.68 1.2947 2 6 6 4 73.83 2.84 1.2834 -4 8 4 4 73.85 3.32 1.2832 2 8 4 4 74.53 2.34 1.2732 -4 4 10 4 75.80 2.15 1.2550 -6 4 2 4 75.81 2.07 1.2548 -3 5 10 4 76.49 1.61 1.2454 6 2 0 4 76.50 1.83 1.2452 -5 3 10 4 78.24 1.28 1.2219 -1 5 10 4 79.26 1.01 1.2087 -2 8 8 4 79.49 1.15 1.2058 5 5 2 4 80.48 1.60 1.1934 1 1 10 4 81.36 1.85 1.1827 6 4 0 4 81.73 1.21 1.1783 4 2 6 4 84.00 1.88 1.1521 -4 8 8 4 84.02 1.66 1.1519 0 8 8 4 86.53 1.85 1.1248 4 4 6 4 86.95 1.06 1.1204 -6 6 8 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.