Heulandite-Na Gunter M E, Armbruster T, Kohler T, Knowles C R American Mineralogist 79 (1994) 675-682 Crystal structure and optical properties of Na- and Pb-exchanged heulandite-group zeolites Sample: Na-exchanged Atomic parameters from ICSD _database_code_amcsd 0001669 CELL PARAMETERS: 17.7670 17.9770 7.4220 90.000 116.140 90.000 SPACE GROUP: C2/m X-RAY WAVELENGTH: 1.541838 Cell Volume: 2128.106 Density (g/cm3): 2.133 MAX. ABS. INTENSITY / VOLUME**2: 5.050714262 RIR: 0.771 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 7.41 1.44 11.9308 1 1 0 4 9.84 100.00 8.9885 0 2 0 2 11.09 36.54 7.9749 2 0 0 2 12.91 4.30 6.8584 -1 1 1 4 13.03 22.42 6.7937 -2 0 1 2 13.29 12.04 6.6629 0 0 1 2 14.85 3.65 5.9654 2 2 0 4 15.80 2.31 5.6095 1 3 0 4 16.36 3.88 5.4198 -2 2 1 4 16.56 5.34 5.3527 0 2 1 4 16.85 18.18 5.2614 -3 1 1 4 17.25 28.44 5.1406 1 1 1 4 17.39 8.38 5.0983 3 1 0 4 19.04 16.23 4.6618 -1 3 1 4 20.30 5.94 4.3746 -4 0 1 2 22.24 50.20 3.9969 1 3 1 4 22.30 19.55 3.9874 4 0 0 2 22.35 33.61 3.9769 3 3 0 4 22.60 19.98 3.9335 -4 2 1 4 22.71 29.68 3.9153 2 4 0 4 23.06 8.92 3.8573 2 2 1 4 23.74 1.12 3.7483 -2 4 1 4 23.99 7.81 3.7098 -2 0 2 2 25.00 15.80 3.5618 -3 1 2 4 25.28 3.30 3.5236 -1 1 2 4 25.58 3.47 3.4829 -5 1 1 4 25.98 30.77 3.4292 -2 2 2 4 26.11 2.83 3.4125 3 1 1 4 26.24 18.59 3.3968 -4 0 2 2 26.76 9.47 3.3314 0 0 2 2 28.08 22.88 3.1775 -4 2 2 4 28.47 18.17 3.1348 -4 4 1 4 28.73 1.51 3.1071 -3 3 2 4 28.97 10.83 3.0817 -1 3 2 4 29.43 1.96 3.0351 -5 1 2 4 29.68 10.84 3.0098 -3 5 1 4 29.71 2.67 3.0066 3 3 1 4 29.82 1.71 2.9962 0 6 0 2 29.92 28.68 2.9867 1 5 1 4 30.00 22.00 2.9783 3 5 0 4 30.14 12.75 2.9655 1 1 2 4 30.21 3.43 2.9580 -6 0 1 2 30.79 3.04 2.9039 4 0 1 2 31.78 22.82 2.8158 5 3 0 4 31.85 10.18 2.8098 -6 2 1 4 32.40 2.59 2.7633 4 2 1 4 32.55 1.42 2.7512 -6 0 2 2 32.67 7.43 2.7414 -2 6 1 4 32.77 5.13 2.7326 0 6 1 4 33.34 2.59 2.6874 1 3 2 4 33.48 3.99 2.6763 0 4 2 4 34.91 4.04 2.5703 2 2 2 4 35.21 1.53 2.5492 6 2 0 4 35.31 3.96 2.5416 -1 5 2 4 35.40 1.50 2.5355 1 7 0 4 35.54 3.32 2.5262 -5 5 1 4 35.94 2.41 2.4989 3 5 1 4 35.94 2.86 2.4985 -7 1 1 4 36.34 1.37 2.4720 -4 6 1 4 36.36 2.66 2.4708 -6 4 1 4 36.54 1.85 2.4592 5 1 1 4 36.64 5.56 2.4527 2 6 1 4 36.85 3.14 2.4391 4 4 1 4 36.92 3.65 2.4346 -2 0 3 2 37.04 4.74 2.4273 -7 1 2 4 37.55 1.92 2.3953 4 6 0 4 38.00 1.98 2.3681 3 1 2 4 38.02 1.92 2.3669 -4 2 3 4 38.15 2.22 2.3588 -5 1 3 4 39.38 1.91 2.2880 6 4 0 4 41.10 1.88 2.1959 -6 2 3 4 42.37 1.10 2.1334 -2 8 1 4 42.44 1.65 2.1298 7 3 0 4 42.97 1.32 2.1050 -6 6 1 4 43.01 2.13 2.1028 6 2 1 4 43.13 1.71 2.0972 -3 7 2 4 43.39 3.19 2.0852 4 6 1 4 43.83 1.93 2.0655 3 7 1 4 44.34 1.33 2.0429 5 5 1 4 44.77 2.34 2.0245 -7 5 2 4 44.82 3.45 2.0223 -6 4 3 4 45.62 1.23 1.9885 6 6 0 4 45.78 1.24 1.9820 1 9 0 4 46.04 2.78 1.9715 -8 4 1 4 46.16 1.33 1.9667 -8 4 2 4 46.21 5.68 1.9644 -1 5 3 4 46.52 2.49 1.9523 -9 1 2 4 46.60 1.22 1.9489 6 4 1 4 47.63 1.10 1.9091 5 1 2 4 48.70 1.02 1.8698 3 9 0 4 48.80 1.02 1.8663 -9 3 2 4 49.12 1.27 1.8549 -4 0 4 2 49.90 1.98 1.8276 -3 1 4 4 50.21 1.25 1.8169 -6 0 4 2 50.79 1.66 1.7977 0 10 0 2 51.20 1.26 1.7842 0 6 3 4 51.42 1.54 1.7772 4 8 1 4 51.56 4.79 1.7726 -7 7 2 4 52.07 3.67 1.7564 -3 3 4 4 52.26 1.57 1.7504 -3 9 2 4 52.74 3.62 1.7356 0 10 1 4 52.87 1.98 1.7318 3 9 1 4 53.47 1.78 1.7135 3 3 3 4 53.78 2.21 1.7044 7 7 0 4 54.02 2.56 1.6974 -10 0 3 2 55.02 2.53 1.6689 -8 2 4 4 55.35 2.80 1.6598 8 6 0 4 56.12 1.33 1.6388 4 10 0 4 56.72 3.54 1.6231 2 6 3 4 57.55 1.02 1.6014 8 4 1 4 57.57 3.18 1.6011 3 5 3 4 57.80 1.69 1.5951 -6 8 3 4 57.81 1.32 1.5950 10 0 0 2 58.83 1.03 1.5698 -8 8 1 4 60.58 1.11 1.5285 4 10 1 4 62.25 1.38 1.4914 8 8 0 4 62.42 1.11 1.4877 8 6 1 4 63.15 1.14 1.4723 2 12 0 4 63.78 2.06 1.4594 -12 2 2 4 64.56 1.36 1.4436 -5 11 2 4 64.73 1.78 1.4402 -11 5 3 4 64.73 1.70 1.4401 1 9 3 4 65.76 1.50 1.4200 -2 0 5 2 65.90 1.37 1.4173 -4 12 1 4 66.00 1.38 1.4155 -11 3 4 4 66.88 1.15 1.3990 10 2 1 4 67.34 1.67 1.3905 -8 10 1 4 68.39 1.39 1.3717 -5 5 5 4 69.09 1.40 1.3595 -7 11 2 4 69.23 1.84 1.3572 -7 5 5 4 69.77 1.08 1.3479 7 7 2 4 72.23 1.54 1.3079 2 12 2 4 74.16 1.32 1.2786 -4 12 3 4 74.69 1.22 1.2708 -2 10 4 4 75.71 1.66 1.2562 -9 11 2 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.