Parakeldyshite Pekov I V, Zubkova N V, Pushcharovsky D Y, Kolitsch U, Tillmanns E Crystallography Reports 52 (2007) 1066-1071 Refined crystal structure of parakeldyshite and genetic crystal chemistry of zirconium minerals with [Si2O7] diorthogroups Locality: Alluaiv Mountain (Lovozero), Kola Peninsula, Russia _database_code_amcsd 0018674 CELL PARAMETERS: 6.6170 8.8130 5.4260 87.260 85.680 71.750 SPACE GROUP: P-1 X-RAY WAVELENGTH: 1.541838 Cell Volume: 299.553 Density (g/cm3): 3.369 MAX. ABS. INTENSITY / VOLUME**2: 14.05915419 RIR: 1.359 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 10.57 8.94 8.3670 0 1 0 2 14.12 1.24 6.2714 1 0 0 2 14.79 40.70 5.9907 1 1 0 2 16.39 1.19 5.4088 0 0 1 2 19.31 15.30 4.5962 0 1 1 2 19.77 5.66 4.4903 0 -1 1 2 20.16 8.68 4.4041 -1 1 0 2 21.00 45.26 4.2312 1 0 1 2 21.24 59.61 4.1835 0 2 0 2 21.24 5.43 4.1825 1 1 1 2 21.56 22.68 4.1214 1 2 0 2 22.38 100.00 3.9728 -1 0 1 2 25.68 14.73 3.4686 1 -1 1 2 26.29 1.26 3.3895 1 2 1 2 27.09 5.23 3.2917 2 1 0 2 28.09 14.91 3.1772 -1 -2 1 2 28.46 9.44 3.1357 2 0 0 2 29.11 6.12 3.0678 -1 2 0 2 30.69 54.52 2.9131 2 1 1 2 30.77 53.75 2.9056 1 3 0 2 32.07 18.34 2.7909 2 0 1 2 32.92 17.06 2.7206 -2 -1 1 2 33.02 15.03 2.7129 2 2 1 2 33.12 51.29 2.7044 0 0 2 2 33.40 32.01 2.6827 1 -2 1 2 33.49 2.20 2.6757 -2 1 0 2 33.77 31.53 2.6544 -1 2 1 2 34.20 1.56 2.6217 1 3 1 2 34.59 2.62 2.5928 0 1 2 2 35.32 2.27 2.5414 1 1 2 2 35.85 4.48 2.5051 0 3 1 2 35.90 8.08 2.5018 -1 -3 1 2 36.63 8.45 2.4534 0 -3 1 2 36.78 4.78 2.4435 2 -1 1 2 38.45 1.43 2.3410 2 3 1 2 38.57 1.47 2.3340 1 2 2 2 39.65 14.16 2.2732 -1 1 2 2 40.78 4.50 2.2126 -2 -3 1 2 41.02 21.24 2.2001 1 4 0 2 41.13 5.41 2.1949 3 1 0 2 41.56 9.00 2.1731 2 1 2 2 42.73 1.14 2.1160 1 -3 1 2 42.74 3.92 2.1156 2 0 2 2 43.25 4.61 2.0917 0 4 0 2 43.28 7.39 2.0905 3 0 0 2 43.33 7.25 2.0880 3 1 1 2 43.94 1.39 2.0607 2 4 0 2 44.38 1.23 2.0412 1 -2 2 2 44.47 5.18 2.0375 1 3 2 2 44.96 6.46 2.0163 -1 2 2 2 44.99 2.10 2.0150 -2 -1 2 2 45.25 2.79 2.0038 -1 -4 1 2 45.42 1.03 1.9969 3 3 0 2 45.51 2.23 1.9930 3 0 1 2 45.67 20.58 1.9864 -2 0 2 2 46.07 2.73 1.9701 2 4 1 2 46.13 7.10 1.9679 0 4 1 2 46.64 3.17 1.9475 2 -1 2 2 46.97 1.99 1.9344 0 -4 1 2 47.02 4.50 1.9327 -2 -2 2 2 47.18 11.33 1.9264 -1 -3 2 2 47.26 12.66 1.9234 3 3 1 2 47.42 1.31 1.9172 0 -3 2 2 47.62 3.08 1.9095 -3 0 1 2 48.03 13.36 1.8944 -3 1 0 2 48.30 1.48 1.8841 -2 -4 1 2 51.29 6.36 1.7811 3 4 0 2 51.58 2.48 1.7718 0 1 3 2 51.78 3.67 1.7654 1 1 3 2 52.00 5.95 1.7587 1 5 0 2 52.11 1.93 1.7552 3 2 2 2 52.19 2.91 1.7527 1 -3 2 2 52.30 3.40 1.7493 1 4 2 2 52.31 3.99 1.7488 -1 3 2 2 52.69 4.38 1.7371 2 -3 1 2 52.78 1.29 1.7343 2 -2 2 2 52.98 1.82 1.7283 -1 4 1 2 53.11 4.31 1.7244 1 -4 1 2 53.39 1.36 1.7159 -2 3 1 2 53.46 4.02 1.7141 2 5 0 2 53.68 11.48 1.7074 3 0 2 2 53.79 8.80 1.7042 -1 0 3 2 54.38 2.45 1.6871 1 -1 3 2 54.56 4.68 1.6821 -2 2 2 2 54.86 4.85 1.6734 0 5 0 2 55.09 1.35 1.6670 -1 -4 2 2 55.53 1.64 1.6548 -3 -4 1 2 55.67 1.12 1.6509 -1 -5 1 2 55.85 2.39 1.6461 -3 -1 2 2 56.23 2.28 1.6358 4 1 0 2 56.26 5.22 1.6351 2 1 3 2 56.28 1.04 1.6345 0 -4 2 2 57.12 4.41 1.6126 -1 -2 3 2 57.21 5.96 1.6103 0 5 1 2 57.24 1.70 1.6094 4 2 1 2 57.30 3.97 1.6078 2 0 3 2 57.37 1.13 1.6061 -2 -5 1 2 57.54 5.34 1.6017 2 2 3 2 57.70 1.06 1.5977 4 1 1 2 57.82 6.15 1.5947 4 3 0 2 57.97 4.24 1.5909 3 -1 2 2 58.12 7.59 1.5872 0 -5 1 2 58.38 1.88 1.5807 -3 2 1 2 58.73 2.49 1.5720 1 3 3 2 59.11 5.46 1.5628 1 -2 3 2 59.70 3.04 1.5490 -3 -3 2 2 59.82 4.62 1.5460 -1 2 3 2 59.98 2.87 1.5423 3 4 2 2 60.00 3.78 1.5419 -4 -2 1 2 60.26 3.17 1.5357 -4 -1 1 2 60.34 5.01 1.5339 -2 4 0 2 60.38 9.20 1.5330 3 5 1 2 60.41 3.57 1.5324 -2 -1 3 2 60.42 2.54 1.5322 4 0 1 2 60.42 1.30 1.5321 0 3 3 2 60.72 2.16 1.5253 2 -3 2 2 61.17 4.16 1.5151 -3 1 2 2 61.24 1.20 1.5135 -1 4 2 2 61.65 1.70 1.5045 -1 5 0 2 62.34 3.65 1.4894 2 5 2 2 62.74 5.01 1.4809 -4 0 1 2 63.00 1.04 1.4755 -3 -5 1 2 63.70 1.07 1.4608 1 6 0 2 64.25 2.64 1.4498 3 -2 2 2 64.43 3.11 1.4461 4 1 2 2 64.48 2.46 1.4451 -1 -5 2 2 64.76 4.94 1.4396 0 5 2 2 64.83 4.12 1.4381 -3 -4 2 2 65.55 3.76 1.4240 4 3 2 2 65.59 1.15 1.4232 2 6 1 2 66.03 5.00 1.4149 -2 -3 3 2 66.59 1.57 1.4043 2 4 3 2 66.90 1.30 1.3987 3 5 2 2 67.14 1.93 1.3942 3 3 3 2 67.29 2.99 1.3914 -4 1 1 2 67.71 2.12 1.3838 -2 -6 1 2 67.74 1.92 1.3833 0 4 3 2 68.06 2.73 1.3775 4 5 0 2 69.05 1.06 1.3602 4 5 1 2 69.13 1.02 1.3588 0 6 1 2 69.52 2.86 1.3522 0 0 4 2 70.16 6.11 1.3414 2 -4 2 2 70.27 2.12 1.3395 1 0 4 2 70.88 1.00 1.3295 0 -1 4 2 70.95 2.17 1.3283 -4 -3 2 2 71.02 2.22 1.3272 -2 4 2 2 71.52 3.39 1.3191 -1 5 2 2 71.92 1.26 1.3129 4 -2 1 2 72.03 3.67 1.3111 1 2 4 2 72.05 1.32 1.3107 -3 -6 1 2 72.07 1.60 1.3105 1 -5 2 2 73.09 1.06 1.2946 2 -3 3 2 73.66 1.87 1.2860 2 1 4 2 73.69 1.81 1.2857 5 1 1 2 73.73 1.08 1.2850 -4 2 1 2 74.13 1.71 1.2790 1 -4 3 2 74.26 1.96 1.2771 0 -2 4 2 74.28 1.48 1.2769 -2 5 1 2 74.92 1.70 1.2675 4 5 2 2 75.24 1.48 1.2629 3 -4 1 2 75.85 2.43 1.2543 5 0 0 2 75.86 1.03 1.2541 2 7 0 2 76.19 2.81 1.2496 -3 4 1 2 76.35 2.87 1.2472 -5 -3 1 2 76.49 2.07 1.2454 -5 -1 1 2 76.70 1.14 1.2425 0 5 3 2 77.92 2.95 1.2261 3 5 3 2 78.85 2.09 1.2139 -2 0 4 2 79.06 1.23 1.2112 0 -5 3 2 79.46 1.98 1.2061 -2 -5 3 2 79.52 1.39 1.2054 -1 -7 1 2 79.57 1.17 1.2047 0 -3 4 2 79.91 1.28 1.2005 -1 -3 4 2 80.77 1.70 1.1898 5 5 1 2 81.74 1.07 1.1782 1 4 4 2 81.94 1.67 1.1758 -4 3 1 2 82.45 1.35 1.1698 3 0 4 2 82.73 1.12 1.1665 5 0 2 2 82.74 1.26 1.1664 1 -3 4 2 82.99 1.56 1.1636 2 6 3 2 83.22 1.66 1.1609 0 -7 1 2 84.12 3.50 1.1507 -5 -5 1 2 84.70 1.09 1.1443 -3 5 0 2 85.42 1.56 1.1366 -2 2 4 2 86.75 1.79 1.1226 0 -4 4 2 87.46 1.07 1.1152 -3 -1 4 2 87.86 1.36 1.1112 -5 0 2 2 87.95 1.60 1.1103 -5 2 0 2 88.39 1.05 1.1058 -4 1 3 2 88.88 1.34 1.1010 -4 4 0 2 89.10 2.27 1.0989 4 -2 3 2 89.55 2.20 1.0946 2 5 4 2 89.80 1.26 1.0922 -1 7 1 2 89.82 2.90 1.0920 5 1 3 2 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.