Frolovite Simonov M A, Kazanskaya E V, Egorov-Tismenko Y K, Zhelezi E P, Belov N V Doklady Akademii Nauk SSSR 230 (1976) 91-94 Refinement of the crystal-structure of frolovite, Ca[B(OH)4]2 Note: T = 18 C _database_code_amcsd 0019821 CELL PARAMETERS: 7.7740 5.6800 8.1360 113.150 101.670 107.870 SPACE GROUP: P-1 X-RAY WAVELENGTH: 1.541838 Cell Volume: 292.206 Density (g/cm3): 2.247 MAX. ABS. INTENSITY / VOLUME**2: 3.114767785 RIR: 0.451 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 12.73 9.27 6.9530 0 0 1 2 12.87 1.01 6.8768 1 0 0 2 14.39 100.00 6.1550 -1 0 1 2 16.78 1.21 5.2821 0 -1 1 2 17.66 2.86 5.0234 -1 1 0 2 18.81 2.61 4.7174 0 1 0 2 21.26 10.36 4.1788 1 0 1 2 23.20 82.94 3.8346 -1 -1 1 2 23.21 15.11 3.8315 0 -1 2 2 24.05 6.70 3.7007 -1 0 2 2 24.28 2.56 3.6662 -2 0 1 2 24.32 1.80 3.6598 -1 1 1 2 24.64 74.60 3.6129 -2 1 0 2 25.62 79.07 3.4765 0 0 2 2 25.95 19.50 3.4330 -1 -1 2 2 27.13 2.80 3.2874 1 1 0 2 27.30 8.03 3.2672 1 -1 2 2 27.55 1.70 3.2376 0 1 1 2 31.57 30.58 2.8336 1 -2 1 2 32.88 8.98 2.7241 1 0 2 2 33.05 9.05 2.7103 2 0 1 2 33.64 1.74 2.6644 0 -2 1 2 33.75 1.46 2.6559 0 -1 3 2 33.83 34.77 2.6494 -2 -1 1 2 33.83 7.16 2.6493 1 -2 2 2 33.91 13.78 2.6439 -1 -1 3 2 34.00 24.69 2.6364 -2 -1 2 2 34.50 2.01 2.5995 -1 2 0 2 34.80 3.66 2.5776 2 -2 1 2 34.87 4.48 2.5729 -1 1 2 2 35.59 47.78 2.5224 -2 1 2 2 35.75 57.32 2.5117 -2 2 0 2 35.93 1.30 2.4996 -3 1 1 2 36.04 19.83 2.4922 -1 0 3 2 36.10 20.12 2.4881 2 -1 2 2 36.46 1.77 2.4641 -3 0 1 2 37.98 1.96 2.3693 -2 0 3 2 38.15 7.74 2.3587 0 2 0 2 38.23 1.25 2.3541 -3 0 2 2 38.45 35.24 2.3413 2 1 0 2 38.49 26.21 2.3392 1 -1 3 2 38.61 21.78 2.3321 2 -2 2 2 38.86 13.87 2.3177 0 0 3 2 38.90 19.38 2.3153 -1 -2 2 2 38.91 2.45 2.3147 -2 -1 3 2 38.97 6.21 2.3110 0 -2 3 2 38.97 15.50 2.3110 0 1 2 2 39.30 21.43 2.2923 3 0 0 2 40.28 3.48 2.2389 -1 -2 1 2 40.52 3.43 2.2262 1 -2 3 2 40.92 3.23 2.2055 -3 1 2 2 41.66 2.16 2.1678 -1 2 1 2 41.89 21.00 2.1567 -1 -2 3 2 42.27 20.83 2.1380 3 -2 1 2 43.30 10.67 2.0894 2 0 2 2 44.14 13.75 2.0517 -3 0 3 2 44.64 12.97 2.0301 -1 -1 4 2 44.88 16.87 2.0195 -3 -1 2 2 44.89 21.86 2.0192 -3 2 1 2 45.69 5.47 1.9857 1 0 3 2 45.99 1.89 1.9734 0 -1 4 2 46.16 9.43 1.9664 2 -2 3 2 46.22 9.97 1.9641 -3 -1 1 2 46.25 3.22 1.9630 -2 1 3 2 46.29 2.43 1.9612 0 2 1 2 46.83 16.09 1.9400 1 1 2 2 46.86 4.82 1.9387 2 -1 3 2 46.87 3.21 1.9383 -4 1 1 2 47.00 6.72 1.9332 3 -2 2 2 47.12 4.68 1.9287 -1 1 3 2 47.30 1.67 1.9217 -2 -1 4 2 47.38 10.62 1.9186 3 -1 2 2 47.92 7.06 1.8985 -4 1 0 2 48.25 9.30 1.8860 1 -3 2 2 48.59 12.94 1.8739 -1 -2 4 2 48.61 1.61 1.8731 -2 -2 3 2 49.09 4.99 1.8558 -1 0 4 2 49.24 6.32 1.8504 -2 0 4 2 49.28 1.89 1.8490 2 -3 1 2 49.33 15.01 1.8475 1 -3 1 2 49.62 8.58 1.8372 -4 1 2 2 49.71 1.82 1.8341 -4 0 1 2 49.74 6.48 1.8331 -4 0 2 2 49.83 10.28 1.8299 -2 2 2 2 50.17 6.05 1.8183 1 -2 4 2 50.52 2.74 1.8064 -4 2 0 2 50.70 3.31 1.8005 0 -3 2 2 51.12 2.76 1.7868 1 -1 4 2 51.75 4.70 1.7666 0 1 3 2 51.93 3.23 1.7607 0 -3 3 2 52.51 3.10 1.7426 4 -2 1 2 52.58 7.17 1.7405 4 -1 1 2 52.94 1.15 1.7295 3 -3 1 2 53.07 7.70 1.7258 0 -3 1 2 53.09 11.53 1.7250 -3 0 4 2 53.28 5.04 1.7192 4 0 0 2 53.37 4.96 1.7168 -4 0 3 2 53.51 2.06 1.7124 2 -3 3 2 53.53 1.88 1.7119 -3 -1 4 2 53.95 4.58 1.6995 -1 3 0 2 54.22 4.90 1.6916 1 2 1 2 54.55 1.08 1.6823 3 -3 2 2 54.83 1.21 1.6745 -3 3 0 2 54.92 1.42 1.6719 3 -2 3 2 55.57 1.15 1.6537 3 0 2 2 55.94 2.77 1.6437 2 2 0 2 56.32 11.42 1.6336 2 -2 4 2 56.59 2.42 1.6264 0 -3 4 2 56.60 1.39 1.6262 -1 -3 2 2 56.87 1.59 1.6189 1 -3 4 2 56.88 1.88 1.6188 0 2 2 2 57.14 2.21 1.6120 -4 2 2 2 57.27 1.14 1.6086 2 1 2 2 57.84 2.18 1.5940 4 -2 2 2 58.07 3.57 1.5885 -2 -1 5 2 58.29 3.70 1.5830 0 -2 5 2 58.35 4.13 1.5815 -3 -2 2 2 58.62 4.17 1.5748 -2 1 4 2 58.72 5.49 1.5725 0 3 0 2 59.27 2.91 1.5591 3 1 1 2 59.45 1.28 1.5547 3 -3 3 2 59.50 2.57 1.5535 1 1 3 2 59.52 2.27 1.5530 -5 1 1 2 59.81 4.38 1.5463 -4 -1 1 2 59.98 1.77 1.5424 -3 3 1 2 60.01 1.43 1.5415 -1 -3 1 2 60.13 4.04 1.5387 -4 0 4 2 60.57 1.13 1.5286 -1 1 4 2 60.79 1.02 1.5237 -2 2 3 2 61.13 1.33 1.5160 -2 -2 5 2 61.30 1.18 1.5123 -3 2 3 2 61.57 4.56 1.5062 -1 3 1 2 61.61 1.91 1.5053 -5 1 0 2 61.79 3.07 1.5014 -3 -2 1 2 61.81 3.07 1.5010 -5 2 0 2 62.38 1.38 1.4885 -3 -1 5 2 63.55 1.53 1.4641 -1 2 3 2 63.97 1.88 1.4553 -5 0 1 2 64.06 1.01 1.4536 -2 -3 3 2 64.18 1.69 1.4512 0 -3 5 2 64.82 2.04 1.4384 -5 0 3 2 65.02 1.18 1.4343 -4 2 3 2 65.25 1.21 1.4299 4 1 0 2 65.60 1.08 1.4230 1 -3 5 2 65.93 3.07 1.4168 2 -4 2 2 65.93 2.31 1.4168 -1 -3 5 2 67.06 3.59 1.3957 2 -4 3 2 68.19 1.34 1.3753 4 -3 3 2 68.19 1.10 1.3752 3 2 0 2 69.51 1.79 1.3524 -4 0 5 2 69.58 1.16 1.3511 0 -4 3 2 69.61 3.23 1.3506 -2 -3 1 2 69.78 1.31 1.3477 2 1 3 2 69.81 1.37 1.3473 -5 0 4 2 70.11 1.11 1.3422 2 -3 5 2 70.43 4.60 1.3369 4 -1 3 2 70.43 1.43 1.3368 3 -4 3 2 70.70 2.68 1.3324 -4 3 2 2 70.74 1.76 1.3318 -2 -3 5 2 70.89 2.06 1.3293 -1 -1 6 2 71.12 1.54 1.3256 -5 3 1 2 71.35 1.82 1.3219 -2 -2 6 2 72.95 1.26 1.2968 5 -3 2 2 73.48 1.87 1.2888 4 -4 2 2 73.63 3.05 1.2865 -2 2 4 2 73.64 1.54 1.2863 1 1 4 2 73.97 3.88 1.2814 -5 -1 4 2 74.11 5.65 1.2794 0 -1 6 2 74.83 2.23 1.2688 -3 -3 4 2 75.48 1.67 1.2595 1 3 1 2 75.79 1.58 1.2551 -4 1 5 2 76.17 1.05 1.2498 -6 2 2 2 76.52 1.67 1.2450 -6 1 3 2 76.68 2.02 1.2428 -6 1 0 2 76.72 1.57 1.2422 4 -4 3 2 77.36 1.48 1.2336 -3 0 6 2 77.46 1.24 1.2322 3 -3 5 2 78.10 1.83 1.2237 2 -4 5 2 78.39 1.58 1.2199 -3 3 3 2 78.76 1.16 1.2151 6 -2 1 2 79.77 1.33 1.2022 -2 3 3 2 81.26 2.10 1.1839 6 -3 1 2 81.53 1.37 1.1806 5 -4 2 2 82.47 1.52 1.1696 2 -2 6 2 82.83 1.28 1.1654 4 -1 4 2 83.40 1.12 1.1588 0 0 6 2 83.70 1.60 1.1555 0 -4 6 2 84.18 1.50 1.1501 2 0 5 2 84.36 1.84 1.1481 -1 4 1 2 84.85 2.77 1.1428 5 0 2 2 85.90 3.36 1.1314 -5 4 1 2 88.19 1.57 1.1079 -2 1 6 2 88.71 1.57 1.1028 -6 2 4 2 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.