Chromo-alumino-povondraite Reznitskii L, Clark C M, Hawthorne F C, Grice J D, Skogby H, Halenius U, Bosi F American Mineralogist 99 (2014) 1767-1773 Chromo-alumino-povondraite, NaCr3(Al4Mg2)(Si6O18)(BO3)3(OH)3O, a new mineral species of the tourmaline supergroup Locality: Sludyanka, Lake Baikal, Russia _database_code_amcsd 0020335 CELL PARAMETERS: 16.0277 16.0277 7.3085 90.000 90.000 120.000 SPACE GROUP: R3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 1625.928 Density (g/cm3): 3.225 MAX. ABS. INTENSITY / VOLUME**2: 9.890360741 RIR: 0.998 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 11.04 1.31 8.0139 1 1 0 6 13.69 57.74 6.4668 1 0 1 3 17.62 19.34 5.0326 0 2 1 3 19.18 19.72 4.6268 3 0 0 3 20.84 48.16 4.2619 2 1 1 6 22.19 64.80 4.0069 2 2 0 6 25.20 50.78 3.5338 0 1 2 3 26.16 5.81 3.4061 1 3 1 6 27.59 1.40 3.2334 2 0 2 3 28.47 2.20 3.1347 4 0 1 3 29.49 8.10 3.0290 4 1 0 6 29.80 61.56 2.9985 1 2 2 6 30.62 8.42 2.9193 3 2 1 6 33.82 5.43 2.6504 3 1 2 6 34.56 100.00 2.5952 0 5 1 3 35.68 1.89 2.5163 0 4 2 3 36.39 4.17 2.4689 2 4 1 6 36.90 6.82 2.4362 0 0 3 1 37.46 17.21 2.4007 2 3 2 6 38.14 13.27 2.3595 5 1 1 6 38.93 3.45 2.3134 6 0 0 3 40.59 1.46 2.2226 5 2 0 6 40.82 16.12 2.2105 5 0 2 3 41.45 6.70 2.1782 4 3 1 6 41.91 5.97 2.1556 0 3 3 3 41.91 7.11 2.1556 3 0 3 3 42.42 4.11 2.1310 4 2 2 6 43.47 9.37 2.0816 2 2 3 6 43.97 46.03 2.0594 1 5 2 6 44.56 9.31 2.0332 1 6 1 6 45.26 3.26 2.0035 4 4 0 6 46.94 24.22 1.9355 3 4 2 6 47.51 2.76 1.9137 3 5 1 6 47.92 7.99 1.8983 1 4 3 6 48.93 5.79 1.8614 6 2 1 6 49.78 1.31 1.8316 6 1 2 6 50.72 3.90 1.8000 3 3 3 6 51.74 2.26 1.7669 0 2 4 3 52.51 1.07 1.7429 5 3 2 6 53.03 1.21 1.7269 5 4 1 6 53.83 3.24 1.7030 2 6 2 6 54.72 15.48 1.6775 0 6 3 3 54.72 5.38 1.6775 6 0 3 3 55.64 11.96 1.6519 2 7 1 6 56.96 4.24 1.6167 4 0 4 3 57.50 15.91 1.6028 5 5 0 6 57.68 4.66 1.5982 4 5 2 6 58.17 2.00 1.5859 8 1 1 6 58.22 1.70 1.5848 3 2 4 6 59.41 4.25 1.5557 4 6 1 6 59.98 4.32 1.5423 9 0 0 3 60.16 4.99 1.5382 7 2 2 6 60.64 1.91 1.5272 7 3 1 6 60.68 15.34 1.5262 0 5 4 3 61.20 3.79 1.5145 8 2 0 6 61.89 4.89 1.4993 2 4 4 6 62.57 1.20 1.4845 1 8 2 6 63.08 14.69 1.4737 5 1 4 6 63.38 2.71 1.4675 1 7 3 6 63.76 4.63 1.4597 6 4 2 6 64.06 3.96 1.4537 0 1 5 3 64.77 6.34 1.4393 7 4 0 6 65.40 8.26 1.4271 6 5 1 6 65.44 9.53 1.4263 4 3 4 6 65.73 1.72 1.4206 3 6 3 6 65.73 3.08 1.4206 6 3 3 6 67.71 1.27 1.3838 3 8 1 6 68.85 8.71 1.3637 10 0 1 3 69.54 3.49 1.3518 5 6 2 6 69.82 2.04 1.3471 0 4 5 3 70.02 1.29 1.3437 7 0 4 3 70.02 2.97 1.3437 3 5 4 6 70.30 4.56 1.3390 5 5 3 6 70.51 4.35 1.3356 6 6 0 6 70.95 2.61 1.3284 2 3 5 6 71.15 1.01 1.3252 6 2 4 6 71.63 8.39 1.3175 10 1 0 6 71.79 2.51 1.3149 8 3 2 6 72.22 1.50 1.3080 5 7 1 6 72.54 1.27 1.3031 9 0 3 3 72.90 1.53 1.2976 0 10 2 3 73.18 10.66 1.2934 5 0 5 3 73.34 1.03 1.2910 8 4 1 6 73.65 2.52 1.2862 2 8 3 6 73.85 3.62 1.2832 9 3 0 6 74.48 1.77 1.2740 5 4 4 6 76.63 3.20 1.2435 0 11 1 3 76.94 1.28 1.2392 7 4 3 6 77.29 1.77 1.2345 4 8 2 6 77.56 1.66 1.2308 3 4 5 6 77.72 1.11 1.2288 2 10 1 6 78.53 1.68 1.2181 0 0 6 1 79.72 1.87 1.2028 6 1 5 6 80.95 3.77 1.1876 11 1 1 6 81.76 1.40 1.1779 3 0 6 3 83.40 5.58 1.1589 10 1 3 6 84.81 1.10 1.1432 1 11 2 6 85.53 1.65 1.1354 9 3 3 6 88.15 1.22 1.1083 3 3 6 6 88.45 2.17 1.1053 10 0 4 3 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.