Povondraite Grice J D, Ercit T S, Hawthorne F C American Mineralogist 78 (1993) 433-436 Povondraite, a redefinition of the tourmaline ferridravite Note: Atomic parameters updated by Grice on 11/20/2001 Locality: San Francisco mine, Villa Tunari, Bolivia _database_code_amcsd 0001555 CELL PARAMETERS: 16.1860 16.1860 7.4440 90.000 90.000 120.000 SPACE GROUP: R3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 1688.947 Density (g/cm3): 3.422 MAX. ABS. INTENSITY / VOLUME**2: 13.43792692 RIR: 1.279 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 13.47 64.24 6.5745 1 0 1 3 17.38 28.39 5.1029 0 2 1 3 18.99 36.43 4.6725 3 0 0 3 20.58 35.74 4.3165 2 1 1 6 21.97 57.75 4.0465 2 2 0 6 24.75 44.27 3.5973 0 1 2 3 25.85 10.25 3.4461 1 3 1 6 28.14 7.48 3.1706 4 0 1 3 29.20 4.12 3.0589 4 1 0 6 29.33 51.68 3.0456 1 2 2 6 30.28 7.78 2.9521 3 2 1 6 33.33 9.81 2.6885 3 1 2 6 34.18 100.00 2.6236 0 5 1 3 35.17 2.63 2.5514 0 4 2 3 35.99 6.72 2.4957 2 4 1 6 36.20 6.76 2.4813 0 0 3 1 36.94 20.71 2.4334 2 3 2 6 37.72 14.10 2.3849 5 1 1 6 38.54 6.08 2.3362 6 0 0 3 40.27 21.12 2.2393 5 0 2 3 41.00 2.67 2.2014 4 3 1 6 41.19 8.05 2.1915 0 3 3 3 41.19 10.15 2.1915 3 0 3 3 41.86 5.13 2.1582 4 2 2 6 42.75 7.95 2.1153 2 2 3 6 43.39 46.11 2.0854 1 5 2 6 44.08 6.33 2.0546 1 6 1 6 44.79 2.73 2.0233 4 4 0 6 46.34 23.32 1.9593 3 4 2 6 46.99 1.11 1.9338 7 0 1 3 46.99 4.57 1.9338 3 5 1 6 47.16 7.27 1.9270 1 4 3 6 48.40 3.58 1.8808 6 2 1 6 49.15 1.74 1.8537 6 1 2 6 49.94 2.56 1.8263 3 3 3 6 50.76 2.79 1.7987 0 2 4 3 51.76 2.40 1.7660 6 3 0 6 51.85 2.58 1.7635 5 3 2 6 52.44 3.12 1.7448 5 4 1 6 53.16 2.17 1.7230 2 6 2 6 53.90 14.01 1.7010 0 6 3 3 53.90 7.15 1.7010 6 0 3 3 55.02 11.47 1.6689 2 7 1 6 55.94 4.64 1.6436 4 0 4 3 56.89 13.09 1.6186 5 5 0 6 56.96 6.45 1.6166 4 5 2 6 57.19 2.47 1.6107 3 2 4 6 57.52 2.57 1.6022 8 1 1 6 58.75 4.77 1.5717 4 6 1 6 59.34 6.43 1.5575 9 0 0 3 59.41 5.26 1.5557 7 2 2 6 59.63 15.03 1.5505 0 5 4 3 59.96 2.07 1.5428 7 3 1 6 60.54 3.81 1.5294 8 2 0 6 60.83 5.51 1.5228 2 4 4 6 61.80 1.41 1.5012 1 8 2 6 62.01 12.76 1.4965 5 1 4 6 62.48 2.81 1.4866 1 7 3 6 62.76 4.06 1.4805 0 1 5 3 62.97 4.13 1.4761 6 4 2 6 64.06 6.03 1.4535 7 4 0 6 64.34 9.09 1.4478 4 3 4 6 64.66 8.76 1.4416 6 5 1 6 64.80 2.49 1.4388 3 6 3 6 64.80 3.79 1.4388 6 3 3 6 66.94 1.04 1.3979 3 8 1 6 68.06 6.62 1.3775 10 0 1 3 68.47 2.02 1.3703 0 4 5 3 68.67 3.98 1.3668 5 6 2 6 68.88 1.21 1.3632 7 0 4 3 68.88 3.06 1.3632 3 5 4 6 69.18 1.08 1.3580 9 2 1 6 69.31 4.35 1.3557 5 5 3 6 69.59 3.16 1.3510 2 3 5 6 69.72 3.36 1.3488 6 6 0 6 70.82 7.71 1.3305 10 1 0 6 70.89 2.11 1.3294 8 3 2 6 71.39 1.38 1.3213 5 7 1 6 71.52 2.28 1.3192 9 0 3 3 71.79 9.98 1.3149 5 0 5 3 71.99 1.20 1.3118 0 10 2 3 72.48 1.11 1.3040 8 4 1 6 72.61 2.82 1.3020 2 8 3 6 73.01 3.81 1.2959 9 3 0 6 73.27 2.10 1.2919 5 4 4 6 75.24 1.42 1.2630 7 5 2 6 75.72 2.55 1.2560 0 11 1 3 75.86 1.56 1.2542 7 4 3 6 76.31 1.78 1.2479 4 8 2 6 76.80 1.17 1.2412 2 10 1 6 76.83 1.88 1.2407 0 0 6 1 78.25 1.83 1.2217 6 1 5 6 79.98 3.58 1.1996 11 1 1 6 80.02 1.57 1.1991 3 0 6 3 82.21 4.74 1.1726 10 1 3 6 83.71 1.31 1.1554 1 11 2 6 84.31 2.09 1.1487 9 3 3 6 84.56 1.34 1.1459 4 5 5 6 86.30 1.02 1.1272 3 3 6 6 86.65 1.10 1.1236 7 2 5 6 87.03 1.79 1.1197 10 0 4 3 89.43 1.44 1.0957 0 6 6 3 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.