Chesnokovite Pekova I V, Chukanov N V, Zadov A E, Zubkova N V, Pushcharovsky D Yu Geology of Ore Deposits 49 (2007) 727-738 Chesnokovite, Na2[SiO2(OH)2]*8H2O, the first natural sodium orthosilicate from the Lovozero alkaline pluton, Kola Peninsula: Description and crystal structure of a new mineral species Locality: Mt. Kedykverpakhk, Lovozero alkaline pluton, Kola Peninsula, Russia _database_code_amcsd 0012665 CELL PARAMETERS: 11.7119 19.9730 11.5652 90.000 90.000 90.000 SPACE GROUP: Ibca X-RAY WAVELENGTH: 1.541838 Cell Volume: 2705.352 Density (g/cm3): 1.395 MAX. ABS. INTENSITY / VOLUME**2: 2.397271538 RIR: 0.559 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 8.85 27.52 9.9865 0 2 0 2 13.94 23.25 6.3508 1 2 1 8 15.32 4.11 5.7826 0 0 2 2 17.55 35.84 5.0543 2 1 1 8 17.67 3.67 5.0187 1 1 2 8 17.72 49.82 5.0042 0 2 2 4 17.76 7.96 4.9932 0 4 0 2 20.81 11.60 4.2689 1 4 1 8 21.60 1.23 4.1146 2 0 2 4 21.62 100.00 4.1100 2 3 1 8 21.73 1.62 4.0908 1 3 2 8 23.54 1.58 3.7793 0 4 2 4 25.68 2.09 3.4686 3 2 1 8 25.92 2.03 3.4380 1 2 3 8 26.78 64.59 3.3288 0 6 0 2 28.07 24.82 3.1789 2 1 3 8 28.20 1.64 3.1644 1 5 2 8 28.93 18.64 3.0859 1 6 1 8 30.07 35.62 2.9722 3 4 1 8 30.27 16.58 2.9529 1 4 3 8 30.53 48.25 2.9280 4 0 0 2 30.72 18.98 2.9101 3 3 2 8 30.85 52.40 2.8987 2 3 3 8 30.93 3.94 2.8913 0 0 4 2 31.85 3.71 2.8097 4 2 0 4 32.20 50.74 2.7797 1 1 4 8 32.23 3.25 2.7772 0 2 4 4 33.89 3.38 2.6451 3 2 3 8 34.33 1.10 2.6122 4 0 2 4 34.35 2.64 2.6110 4 3 1 8 34.60 2.26 2.5925 2 0 4 4 34.68 3.59 2.5865 1 3 4 8 35.71 11.33 2.5143 3 5 2 8 35.78 1.33 2.5093 2 2 4 8 35.82 6.82 2.5069 2 5 3 8 35.86 1.36 2.5042 2 7 1 8 35.92 4.10 2.4998 1 7 2 8 35.97 28.32 2.4966 0 8 0 2 36.31 13.82 2.4744 3 6 1 8 37.41 8.60 2.4042 3 4 3 8 38.92 1.50 2.3138 4 5 1 8 39.03 3.27 2.3079 3 1 4 8 39.31 3.39 2.2921 0 8 2 4 40.31 4.97 2.2374 5 2 1 8 40.78 15.98 2.2128 1 2 5 8 41.05 29.87 2.1985 4 6 0 4 41.15 1.41 2.1937 3 3 4 8 41.85 6.16 2.1583 5 1 2 8 42.23 3.51 2.1400 3 7 2 8 42.25 2.73 2.1389 2 1 5 8 42.71 4.59 2.1169 3 6 3 8 43.38 6.33 2.0859 5 4 1 8 43.82 6.80 2.0659 1 4 5 8 43.86 2.54 2.0641 5 3 2 8 43.89 1.80 2.0628 1 8 3 8 44.07 1.46 2.0550 4 6 2 8 44.35 4.23 2.0426 2 9 1 8 44.99 6.19 2.0150 4 2 4 8 45.14 4.16 2.0084 3 5 4 8 45.32 23.29 2.0010 1 7 4 8 46.52 1.00 1.9520 6 0 0 2 46.53 1.84 1.9516 3 2 5 8 47.15 1.70 1.9275 0 0 6 2 47.45 5.41 1.9159 6 1 1 8 47.68 1.55 1.9075 5 5 2 8 47.82 1.43 1.9022 4 4 4 8 47.88 1.24 1.8998 4 8 0 4 48.07 1.29 1.8926 0 2 6 4 48.15 2.30 1.8899 5 6 1 8 48.16 7.58 1.8896 0 8 4 4 48.56 4.15 1.8750 1 6 5 8 49.28 3.77 1.8490 6 3 1 8 49.29 6.16 1.8486 3 4 5 8 50.34 11.83 1.8125 5 1 4 8 50.57 7.04 1.8049 4 8 2 8 50.67 1.27 1.8017 3 7 4 8 52.24 1.49 1.7511 4 3 5 8 52.77 5.32 1.7349 6 1 3 8 53.00 2.88 1.7278 5 7 2 8 53.33 3.99 1.7178 2 7 5 8 54.66 1.34 1.6792 1 8 5 8 55.05 6.66 1.6681 0 6 6 4 56.40 2.01 1.6314 1 12 1 8 56.68 2.48 1.6239 5 2 5 8 57.22 6.78 1.6100 4 0 6 4 57.75 5.14 1.5964 6 5 3 8 57.78 2.96 1.5956 6 7 1 8 58.10 1.60 1.5877 4 8 4 8 59.57 1.01 1.5519 5 9 2 8 59.88 3.67 1.5447 2 9 5 8 60.32 9.09 1.5345 5 7 4 8 60.41 1.04 1.5323 4 4 6 8 61.89 1.47 1.4993 1 10 5 8 63.00 1.06 1.4754 5 6 5 8 63.96 1.56 1.4557 6 3 5 8 64.04 8.08 1.4541 6 9 1 8 64.27 2.40 1.4494 4 6 6 8 64.39 1.43 1.4470 4 12 0 4 66.63 1.69 1.4037 4 12 2 8 67.43 1.07 1.3890 2 7 7 8 67.50 1.66 1.3876 2 11 5 8 67.54 1.93 1.3870 0 10 6 4 67.64 1.45 1.3851 0 14 2 4 70.24 1.47 1.3401 8 6 0 4 73.23 1.43 1.2926 2 9 7 8 73.38 2.00 1.2903 2 15 1 8 75.55 1.25 1.2586 6 1 7 8 75.96 1.41 1.2527 2 1 9 8 76.01 1.24 1.2521 4 14 2 8 76.14 1.34 1.2503 2 13 5 8 76.95 1.68 1.2391 6 3 7 8 80.15 1.58 1.1974 2 5 9 8 82.79 1.14 1.1658 8 0 6 4 84.39 1.18 1.1478 10 3 1 8 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.