Armstrongite Mesto E, Kaneva E, Schingaro E, Vladykin N, Lacalamita M, Scordari F American Mineralogist 99 (2014) 2424-2432 Armstrongite from Khan Bogdo (Mongolia): Crystal structure determination and implications for zeolite-like cation exchange properties Locality: Khan Bogdo deposit, southern Gobi Desert, Gobi, Mongolia _database_code_amcsd 0020417 CELL PARAMETERS: 14.0178 14.1289 7.8366 90.000 109.436 90.000 SPACE GROUP: C2/m X-RAY WAVELENGTH: 1.541838 Cell Volume: 1463.639 Density (g/cm3): 2.616 MAX. ABS. INTENSITY / VOLUME**2: 10.66413008 RIR: 1.328 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 9.16 2.43 9.6529 1 1 0 4 11.98 21.70 7.3900 0 0 1 2 12.53 47.95 7.0644 0 2 0 2 13.40 83.56 6.6095 2 0 0 2 17.37 3.31 5.1065 0 2 1 4 18.38 6.00 4.8264 2 2 0 4 19.37 35.40 4.5828 -2 2 1 4 20.80 89.93 4.2707 2 0 1 2 22.19 2.57 4.0062 -1 3 1 4 23.35 70.88 3.8101 -2 0 2 2 24.09 8.54 3.6950 0 0 2 2 24.35 9.51 3.6548 2 2 1 4 25.21 2.13 3.5322 0 4 0 2 25.61 1.47 3.4789 -4 0 1 2 26.57 4.46 3.3542 -3 1 2 4 26.58 14.06 3.3535 -2 2 2 4 26.98 19.51 3.3047 4 0 0 2 27.24 3.06 3.2742 0 2 2 4 27.53 6.96 3.2400 3 1 1 4 27.87 3.40 3.2009 1 1 2 4 28.00 25.77 3.1869 0 4 1 4 28.60 5.17 3.1210 -4 2 1 4 28.66 4.52 3.1153 2 4 0 4 29.31 100.00 3.0468 -2 4 1 4 29.67 14.65 3.0109 -4 0 2 2 29.69 2.75 3.0093 -1 3 2 4 29.85 21.71 2.9934 4 2 0 4 31.42 2.22 2.8469 2 0 2 2 33.17 13.55 2.7005 4 0 1 2 33.83 1.81 2.6495 -1 5 1 4 33.95 7.98 2.6405 2 2 2 4 34.36 7.35 2.6099 -2 0 3 2 34.63 17.31 2.5903 -2 4 2 4 35.15 10.28 2.5533 0 4 2 4 35.59 2.03 2.5225 4 2 1 4 36.24 8.59 2.4786 -4 4 1 4 36.48 6.81 2.4633 0 0 3 2 37.26 7.93 2.4132 4 4 0 4 37.58 1.56 2.3931 -4 0 3 2 37.58 2.32 2.3931 -3 5 1 4 38.56 1.02 2.3347 -6 0 1 2 39.32 1.78 2.2914 -4 4 2 4 39.77 1.74 2.2666 -4 2 3 4 40.07 5.69 2.2501 -6 0 2 2 40.34 4.75 2.2357 -3 3 3 4 40.38 3.47 2.2335 5 1 1 4 40.71 9.19 2.2166 2 4 2 4 40.96 1.39 2.2032 6 0 0 2 41.16 3.33 2.1931 -2 6 1 4 41.28 1.24 2.1868 -3 5 2 4 42.18 1.25 2.1426 1 5 2 4 42.33 5.49 2.1354 4 0 2 2 43.09 3.03 2.0990 -2 4 3 4 43.99 2.57 2.0583 1 3 3 4 44.86 2.98 2.0205 0 4 3 4 45.69 1.21 1.9858 0 6 2 4 45.80 17.30 1.9812 -4 4 3 4 46.63 14.30 1.9477 -6 4 1 4 46.78 10.01 1.9418 6 0 1 2 47.06 1.04 1.9308 -6 2 3 4 47.41 1.36 1.9178 4 6 0 4 47.81 1.11 1.9024 1 7 1 4 47.94 1.69 1.8978 -6 4 2 4 48.63 3.55 1.8724 6 2 1 4 48.71 2.90 1.8693 6 4 0 4 49.01 1.17 1.8587 5 1 2 4 49.14 2.08 1.8542 3 5 2 4 49.33 2.64 1.8475 0 0 4 2 49.56 6.97 1.8394 -4 2 4 4 49.91 1.87 1.8274 4 4 2 4 50.64 1.35 1.8024 -3 3 4 4 50.72 3.59 1.7998 2 4 3 4 51.10 1.37 1.7874 0 2 4 4 51.76 12.65 1.7661 0 8 0 2 51.94 1.11 1.7604 3 3 3 4 52.33 1.02 1.7483 -2 6 3 4 52.43 3.57 1.7452 -6 4 3 4 52.58 2.74 1.7406 -8 0 1 2 52.62 2.10 1.7395 -8 0 2 2 52.65 1.45 1.7384 -5 5 3 4 52.65 2.86 1.7383 1 1 4 4 53.27 1.03 1.7198 4 0 3 2 53.55 2.93 1.7112 -2 4 4 4 53.72 4.70 1.7062 2 8 0 4 53.86 2.59 1.7022 0 6 3 4 53.88 2.31 1.7016 6 4 1 4 54.68 4.70 1.6785 -4 6 3 4 54.74 5.65 1.6767 -4 4 4 4 54.95 3.58 1.6710 4 2 3 4 55.19 2.91 1.6643 6 0 2 2 55.42 2.20 1.6580 -6 6 1 4 55.96 1.72 1.6432 2 0 4 2 56.19 1.92 1.6371 0 4 4 4 56.37 5.83 1.6321 2 8 1 4 56.57 3.57 1.6268 -6 6 2 4 57.26 2.45 1.6089 8 2 0 4 57.26 1.44 1.6088 6 6 0 4 57.36 1.19 1.6063 -8 2 3 4 57.52 4.50 1.6023 -2 8 2 4 58.59 1.18 1.5755 3 5 3 4 59.18 1.92 1.5613 -8 4 1 4 59.33 2.80 1.5576 4 8 0 4 59.61 1.07 1.5511 -6 4 4 4 59.81 4.30 1.5462 4 4 3 4 60.80 3.22 1.5234 -4 8 2 4 60.93 2.39 1.5204 -2 2 5 4 61.61 2.07 1.5055 -8 0 4 2 62.01 7.15 1.4967 8 4 0 4 62.11 7.41 1.4945 -8 4 3 4 62.59 1.68 1.4841 7 1 2 4 62.87 4.13 1.4781 4 8 1 4 63.00 3.72 1.4754 -6 0 5 2 63.61 1.35 1.4627 -2 8 3 4 64.15 1.35 1.4517 -1 3 5 4 64.53 1.45 1.4442 -6 2 5 4 64.97 3.31 1.4353 0 8 3 4 65.52 2.04 1.4247 -2 4 5 4 65.71 1.63 1.4210 -4 8 3 4 66.37 1.29 1.4085 -6 8 1 4 67.41 3.87 1.3893 -6 8 2 4 67.73 1.06 1.3835 -10 0 1 2 68.17 1.22 1.3755 -2 10 1 4 69.01 1.06 1.3609 4 8 2 4 69.11 1.21 1.3591 6 6 2 4 71.10 2.03 1.3259 2 2 5 4 72.16 1.02 1.3091 -4 10 1 4 72.32 2.12 1.3065 6 8 1 4 72.58 4.20 1.3025 -10 4 2 4 72.80 2.14 1.2991 4 10 0 4 72.82 2.52 1.2989 -10 0 4 2 72.84 1.31 1.2985 -3 1 6 4 74.24 1.70 1.2774 -10 4 3 4 75.05 1.77 1.2656 2 10 2 4 75.38 1.92 1.2609 2 4 5 4 75.39 1.39 1.2608 -1 1 6 4 76.14 1.87 1.2502 -6 6 5 4 76.90 1.22 1.2397 -8 8 1 4 77.86 1.08 1.2268 9 1 2 4 78.89 1.02 1.2134 0 2 6 4 79.06 1.80 1.2112 6 8 2 4 81.61 1.08 1.1798 -8 2 6 4 83.01 1.92 1.1634 10 4 1 4 83.33 1.04 1.1596 -12 0 3 2 83.70 1.07 1.1555 -2 12 1 4 84.58 1.67 1.1457 -8 8 4 4 85.58 1.63 1.1348 -4 10 4 4 85.82 2.22 1.1323 -6 8 5 4 86.51 1.28 1.1251 -12 0 4 2 87.46 1.13 1.1153 -4 12 1 4 88.07 1.01 1.1091 4 12 0 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.