Hydroxylchondrodite Pekov I V, Gerasimova E I, Chukanov N V, Kabalov Y K, Zubkova N V, Zadov A E, Yapaskurt V O, Gekimyants V M, Pushcharovskii D Y Doklady Akademii Nauk 436 (2011) 526-532 Hydroxylchondrodite Mg5(SiO4)2(OH)2: a new mineral of the humite group and its crystal structure Locality: Perovskitovaya Kop', Chuvashskie Mountains, Southern Urals, Russia _database_code_amcsd 0018887 CELL PARAMETERS: 7.8800 4.7260 10.2900 90.000 109.040 90.000 SPACE GROUP: P2_1/c X-RAY WAVELENGTH: 1.541838 Cell Volume: 362.244 Density (g/cm3): 3.102 MAX. ABS. INTENSITY / VOLUME**2: 4.371140427 RIR: 0.459 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 11.88 12.95 7.4489 1 0 0 2 18.24 1.03 4.8635 0 0 2 2 18.24 76.75 4.8628 -1 0 2 2 20.90 2.33 4.2508 0 1 1 4 22.28 25.75 3.9906 1 1 0 4 22.56 8.02 3.9418 -1 1 1 4 23.89 15.94 3.7244 2 0 0 2 24.92 35.46 3.5735 1 0 2 2 24.92 12.76 3.5726 -2 0 2 2 25.57 41.49 3.4843 1 1 1 4 26.29 19.56 3.3894 0 1 2 4 26.30 5.12 3.3891 -1 1 2 4 29.55 62.94 3.0231 -2 1 1 4 30.56 2.06 2.9252 2 1 0 4 31.38 2.36 2.8504 1 1 2 4 31.39 9.31 2.8499 -2 1 2 4 32.39 53.28 2.7639 -1 1 3 4 33.52 54.14 2.6736 0 1 3 4 34.20 75.25 2.6221 2 1 1 4 34.79 2.52 2.5787 2 0 2 2 34.80 3.66 2.5781 -3 0 2 2 35.68 79.91 2.5161 -2 1 3 4 36.18 11.42 2.4830 3 0 0 2 36.97 12.41 2.4318 0 0 4 2 36.97 1.92 2.4314 -2 0 4 2 38.72 28.13 2.3254 1 1 3 4 39.23 22.27 2.2962 0 2 1 4 39.33 38.02 2.2910 -3 1 1 4 39.82 37.45 2.2636 2 1 2 4 39.83 42.47 2.2633 -3 1 2 4 39.90 40.52 2.2595 -1 1 4 4 40.20 2.80 2.2435 -1 2 1 4 42.06 8.58 2.1482 1 2 1 4 42.50 3.10 2.1269 -3 1 3 4 42.72 11.17 2.1164 -3 0 4 2 44.74 7.49 2.0255 -2 2 1 4 44.82 3.52 2.0221 3 1 1 4 46.16 1.42 1.9665 -4 0 2 2 46.78 4.10 1.9418 -1 2 3 4 48.33 7.43 1.8831 -1 1 5 4 49.15 3.07 1.8536 -2 1 5 4 50.24 3.95 1.8158 3 1 2 4 50.25 2.26 1.8156 -4 1 2 4 50.63 6.26 1.8028 -4 1 1 4 50.75 7.02 1.7990 0 1 5 4 51.12 1.29 1.7868 2 0 4 2 51.13 2.39 1.7863 -4 0 4 2 51.73 2.37 1.7672 -4 1 3 4 52.53 54.61 1.7422 2 2 2 4 52.53 45.39 1.7420 -3 2 2 4 52.59 46.34 1.7403 -1 2 4 4 53.10 1.12 1.7248 -3 1 5 4 53.54 3.84 1.7117 3 2 0 4 53.81 2.55 1.7037 -2 0 6 2 54.12 11.24 1.6947 0 2 4 4 54.12 3.39 1.6946 -2 2 4 4 54.72 2.15 1.6775 -3 2 3 4 56.10 4.80 1.6395 1 1 5 4 56.66 2.57 1.6246 3 2 1 4 56.73 1.56 1.6228 4 1 1 4 56.79 7.98 1.6212 0 0 6 2 56.80 6.25 1.6209 -3 0 6 2 57.00 16.35 1.6155 3 1 3 4 57.50 1.17 1.6027 -2 1 6 4 58.39 1.53 1.5805 2 2 3 4 58.55 8.39 1.5765 -3 2 4 4 58.58 4.21 1.5759 4 0 2 2 58.59 2.83 1.5757 -5 0 2 2 59.44 3.47 1.5551 0 3 1 4 59.73 2.68 1.5481 -4 1 5 4 60.03 1.27 1.5412 1 3 0 4 60.15 2.76 1.5384 -1 3 1 4 60.37 1.69 1.5333 -2 2 5 4 61.33 1.25 1.5115 -4 2 2 4 61.46 3.76 1.5086 3 0 4 2 61.48 3.14 1.5083 -5 0 4 2 61.55 5.59 1.5066 1 3 1 4 61.67 1.55 1.5041 -4 2 1 4 61.77 2.83 1.5019 0 2 5 4 61.91 3.25 1.4987 0 3 2 4 62.33 36.67 1.4898 5 0 0 2 62.48 30.88 1.4865 1 0 6 2 62.49 29.23 1.4862 -4 0 6 2 62.70 12.84 1.4819 -5 1 3 4 63.63 1.59 1.4624 -2 3 1 4 63.84 1.64 1.4580 -3 2 5 4 64.66 2.08 1.4414 -2 3 2 4 65.25 2.78 1.4299 -1 3 3 4 65.92 2.41 1.4169 0 3 3 4 66.34 5.09 1.4091 2 3 1 4 66.54 1.28 1.4053 1 2 5 4 66.71 15.08 1.4021 -2 1 7 4 67.26 5.51 1.3919 -2 3 3 4 68.74 3.97 1.3655 4 1 3 4 69.24 1.89 1.3569 1 3 3 4 69.65 3.53 1.3500 -3 3 1 4 69.86 1.38 1.3465 -4 2 5 4 69.98 12.37 1.3443 2 3 2 4 69.99 13.17 1.3442 -3 3 2 4 70.04 7.78 1.3434 -1 3 4 4 70.51 2.53 1.3355 2 0 6 2 70.53 1.79 1.3352 -5 0 6 2 71.34 1.73 1.3221 0 3 4 4 71.34 3.71 1.3221 -2 3 4 4 72.11 1.26 1.3098 5 0 2 2 72.99 1.39 1.2962 -5 2 1 4 73.78 3.69 1.2843 3 1 5 4 74.65 1.27 1.2714 -5 2 4 4 75.18 2.19 1.2638 1 3 4 4 75.22 1.34 1.2633 -6 1 3 4 76.17 1.12 1.2498 -1 3 5 4 76.60 1.97 1.2439 4 1 4 4 76.62 1.36 1.2436 -6 1 4 4 76.87 1.32 1.2402 -6 1 1 4 77.96 1.09 1.2255 -4 3 1 4 78.06 1.14 1.2243 0 3 5 4 78.17 1.43 1.2228 -5 2 5 4 78.70 1.62 1.2159 0 0 8 2 79.31 1.90 1.2080 5 2 1 4 79.48 2.19 1.2059 -6 1 5 4 79.73 1.53 1.2027 4 3 0 4 79.89 1.14 1.2007 6 1 0 4 79.94 1.08 1.2001 -3 3 5 4 80.20 2.90 1.1969 -5 1 7 4 81.46 1.65 1.1815 -4 3 4 4 81.46 6.72 1.1815 0 4 0 2 82.09 1.30 1.1740 5 1 3 4 82.41 2.85 1.1702 1 3 5 4 82.62 1.48 1.1679 -4 2 7 4 82.94 2.02 1.1641 4 3 1 4 83.17 2.35 1.1614 3 3 3 4 85.51 2.03 1.1356 -4 3 5 4 85.69 1.74 1.1337 1 2 7 4 85.86 4.72 1.1318 4 2 4 4 85.88 5.25 1.1316 -6 2 4 4 86.06 1.14 1.1298 0 3 6 4 86.06 3.66 1.1297 -2 2 8 4 86.06 1.01 1.1297 -3 3 6 4 87.29 1.22 1.1170 -1 2 8 4 88.11 1.52 1.1087 -5 -3 3 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.