Perrierite-(La) Calvo C, Faggiani R American Mineralogist 59 (1974) 1277-1285 A re-investigation of the crystal structures of chevkinite and perrierite Locality: synthetic _database_code_amcsd 0000435 CELL PARAMETERS: 13.8180 5.6770 11.7870 90.000 113.850 90.000 SPACE GROUP: P2_1/a X-RAY WAVELENGTH: 1.541838 Cell Volume: 845.672 Density (g/cm3): 4.760 MAX. ABS. INTENSITY / VOLUME**2: 32.66170351 RIR: 2.234 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 8.20 9.87 10.7805 0 0 1 2 13.06 1.82 6.7764 -2 0 1 2 16.45 42.55 5.3902 0 0 2 2 17.12 35.20 5.1785 1 1 0 4 17.73 9.16 5.0026 -1 1 1 4 18.93 1.49 4.6871 2 0 1 2 20.22 13.96 4.3925 1 1 1 4 20.41 2.18 4.3517 -2 1 1 4 21.74 15.86 4.0881 -1 1 2 4 22.98 1.05 3.8706 -2 1 2 4 23.00 2.05 3.8671 -2 0 3 2 24.63 2.43 3.6144 2 1 1 4 24.78 15.05 3.5935 0 0 3 2 24.90 46.80 3.5766 -3 1 1 4 25.76 15.80 3.4590 1 1 2 4 26.16 2.89 3.4064 -3 1 2 4 26.30 1.25 3.3882 -4 0 2 2 27.77 7.21 3.2121 -1 1 3 4 27.92 1.01 3.1960 -2 1 3 4 28.25 18.92 3.1595 4 0 0 2 29.13 30.43 3.0659 -4 0 3 2 29.82 78.97 2.9961 -3 1 3 4 30.15 100.00 2.9645 3 1 1 4 30.34 1.62 2.9459 -2 0 4 2 31.52 39.01 2.8385 0 2 0 2 32.60 11.22 2.7470 4 0 1 2 32.60 3.65 2.7468 1 1 3 4 32.62 3.04 2.7449 0 2 1 4 33.24 34.76 2.6951 0 0 4 2 33.88 5.48 2.6456 -4 0 4 2 34.25 2.35 2.6181 -2 2 1 4 34.64 3.49 2.5893 2 2 0 4 34.89 17.49 2.5716 -1 1 4 4 35.62 3.95 2.5205 3 1 2 4 35.75 22.02 2.5115 0 2 2 4 35.90 5.33 2.5013 -2 2 2 4 36.22 6.00 2.4798 -5 1 2 4 38.41 8.62 2.3435 4 0 2 2 39.12 4.62 2.3027 -6 0 2 2 39.97 10.60 2.2555 -4 0 5 2 40.16 2.86 2.2451 -6 0 1 2 40.50 8.14 2.2274 0 2 3 4 41.02 2.62 2.2005 -5 1 4 4 41.29 22.08 2.1866 -4 2 1 4 41.50 16.47 2.1759 -4 2 2 4 41.73 20.49 2.1644 -3 1 5 4 42.22 14.55 2.1406 3 1 3 4 42.36 1.26 2.1339 -6 1 2 4 42.46 6.26 2.1290 -6 0 4 2 42.67 2.25 2.1189 -1 1 5 4 42.83 6.94 2.1115 4 2 0 4 42.94 5.12 2.1063 6 0 0 2 43.45 10.08 2.0829 -4 2 3 4 44.32 1.11 2.0440 -2 2 4 4 44.80 1.18 2.0232 -1 2 4 4 45.89 1.58 1.9776 -5 2 2 4 45.98 3.27 1.9740 4 2 1 4 46.46 29.60 1.9545 0 2 4 4 46.50 6.06 1.9529 2 2 3 4 46.95 2.35 1.9353 -4 2 4 4 48.21 1.28 1.8877 5 2 0 4 48.27 2.45 1.8854 5 1 2 4 48.34 1.03 1.8828 1 1 5 4 48.65 1.23 1.8715 1 3 0 4 48.98 9.82 1.8597 -7 1 2 4 49.08 1.07 1.8560 -3 1 6 4 49.11 8.08 1.8550 -7 1 3 4 49.62 5.02 1.8372 3 1 4 4 49.91 2.18 1.8272 2 0 5 2 49.96 1.46 1.8256 1 3 1 4 50.05 2.80 1.8226 -2 3 1 4 50.39 6.65 1.8111 -7 1 1 4 50.39 5.00 1.8110 -2 2 5 4 50.50 4.13 1.8072 4 2 2 4 50.67 2.28 1.8017 -1 3 2 4 50.78 4.22 1.7981 -7 1 4 4 50.82 2.28 1.7967 0 0 6 2 50.96 5.85 1.7919 -1 1 6 4 51.07 3.39 1.7883 -6 2 2 4 51.64 4.86 1.7699 -5 1 6 4 51.72 2.53 1.7675 -6 2 3 4 51.77 3.57 1.7659 -4 2 5 4 51.84 2.76 1.7637 -6 0 6 2 51.93 5.93 1.7609 -6 2 1 4 52.12 2.31 1.7547 2 3 1 4 52.26 5.14 1.7503 -3 3 1 4 52.66 6.20 1.7380 6 0 2 2 52.73 2.00 1.7360 1 3 2 4 52.81 5.90 1.7334 4 0 4 2 52.94 1.42 1.7295 2 2 4 4 53.06 8.45 1.7260 -8 0 3 2 53.36 2.05 1.7169 0 2 5 4 53.44 1.83 1.7146 -8 0 2 2 53.83 7.34 1.7032 -6 2 4 4 53.86 1.07 1.7021 -1 3 3 4 53.86 1.59 1.7021 -7 1 5 4 53.94 1.03 1.6997 -2 3 3 4 54.23 4.62 1.6915 6 2 0 4 54.74 5.48 1.6770 -4 0 7 2 55.07 10.78 1.6675 -3 3 3 4 55.25 2.54 1.6625 -8 0 1 2 55.27 12.10 1.6620 3 3 1 4 56.17 1.61 1.6375 4 2 3 4 56.62 1.59 1.6257 -8 0 5 2 56.96 2.45 1.6166 1 1 6 4 57.10 4.63 1.6130 -3 1 7 4 57.28 1.33 1.6084 -6 2 5 4 57.39 7.96 1.6055 7 1 1 4 57.68 10.91 1.5982 3 1 5 4 57.69 1.37 1.5980 -4 2 6 4 58.22 4.89 1.5845 -7 1 6 4 58.32 2.50 1.5822 -1 3 4 4 58.48 3.10 1.5783 -5 1 7 4 59.23 1.34 1.5601 -5 3 2 4 59.74 1.11 1.5479 2 3 3 4 60.08 3.56 1.5401 0 0 7 2 60.38 1.34 1.5329 -8 0 6 2 61.03 4.70 1.5182 0 2 6 4 62.69 1.56 1.4820 7 1 2 4 62.80 1.49 1.4796 8 0 1 2 62.81 1.86 1.4794 4 2 4 4 63.03 1.24 1.4747 -8 2 3 4 63.18 4.76 1.4717 -3 3 5 4 63.54 3.80 1.4642 3 3 3 4 63.70 1.89 1.4608 -7 1 7 4 64.55 2.60 1.4438 -4 2 7 4 65.01 3.61 1.4345 -8 2 1 4 65.14 2.29 1.4320 -2 2 7 4 65.31 1.97 1.4287 -8 0 7 2 65.80 9.78 1.4193 0 4 0 2 66.25 3.79 1.4107 -8 2 5 4 66.36 1.77 1.4086 3 1 6 4 67.68 1.13 1.3843 -6 2 7 4 68.35 1.11 1.3725 0 4 2 4 68.56 3.77 1.3687 6 2 3 4 68.82 2.72 1.3642 -7 3 2 4 68.88 1.32 1.3631 9 1 0 4 68.93 1.83 1.3623 -7 3 3 4 69.01 1.78 1.3610 7 1 3 4 69.05 3.46 1.3602 -1 1 8 4 69.15 1.22 1.3586 -10 0 2 2 69.34 1.34 1.3552 3 3 4 4 69.43 1.29 1.3537 0 2 7 4 69.72 2.77 1.3488 -8 2 6 4 69.79 3.27 1.3476 0 0 8 2 69.97 2.22 1.3446 -7 3 1 4 70.18 2.37 1.3410 -7 1 8 4 70.29 1.12 1.3393 -7 3 4 4 70.44 1.39 1.3367 -1 3 6 4 71.01 1.92 1.3275 -5 3 6 4 71.89 1.13 1.3134 -10 0 6 2 71.97 2.04 1.3120 8 2 1 4 73.09 1.61 1.2946 4 4 0 4 73.53 2.56 1.2879 -4 4 3 4 74.33 1.87 1.2761 -8 2 7 4 74.42 4.70 1.2749 -6 2 8 4 75.04 2.74 1.2658 -3 1 9 4 75.38 1.08 1.2609 4 4 1 4 75.43 3.46 1.2602 6 2 4 4 75.64 1.42 1.2573 -3 3 7 4 75.71 1.55 1.2563 3 1 7 4 75.74 4.64 1.2558 0 4 4 4 75.89 2.59 1.2537 7 3 1 4 76.14 3.69 1.2502 3 3 5 4 76.61 1.44 1.2437 -7 3 6 4 76.83 1.06 1.2407 -5 3 7 4 76.89 2.35 1.2399 -10 2 4 4 77.07 1.07 1.2375 5 4 0 4 77.91 3.39 1.2262 -11 1 4 4 78.59 2.52 1.2173 0 2 8 4 78.70 1.01 1.2158 4 2 6 4 79.30 1.13 1.2082 -6 4 2 4 79.81 4.18 1.2017 -11 1 2 4 79.85 1.15 1.2012 -4 4 5 4 80.79 2.85 1.1896 -11 1 6 4 80.85 3.10 1.1888 -4 2 9 4 81.51 1.12 1.1809 -6 4 4 4 83.41 1.24 1.1588 8 2 3 4 83.78 2.11 1.1545 10 2 0 4 84.20 1.81 1.1499 -10 2 7 4 84.50 4.00 1.1466 7 1 5 4 85.77 1.85 1.1328 10 0 2 2 85.86 2.72 1.1319 3 1 8 4 86.41 2.05 1.1261 11 1 0 4 86.42 1.36 1.1260 -1 3 8 4 86.81 1.53 1.1220 -8 2 9 4 87.48 1.28 1.1150 -7 3 8 4 88.34 2.14 1.1064 -11 1 8 4 88.63 1.14 1.1035 2 5 1 4 89.06 1.85 1.0993 6 4 2 4 89.18 1.78 1.0981 4 4 4 4 89.97 1.14 1.0906 4 0 8 2 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.