Heulandite-Ca Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R060465 Merkle A B, Slaughter M American Mineralogist 52 (1967) 273-276 The crystal structure of heulandite (Ca,Na2)[Al2Si7O18].6H2O CELL PARAMETERS: 17.69163 17.96337 7.419092 90.00000 116.4793 90.00000 SPACE GROUP: Cm X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 7.49 8.59 11.8789 1 1 0 9.90 100.00 8.9817 0 2 0 11.22 42.37 7.9179 2 0 0 12.96 3.22 6.8547 -1 1 1 13.08 39.60 6.7936 -2 0 1 13.38 27.19 6.6408 0 0 1 14.96 7.51 5.9395 2 2 0 15.87 16.99 5.6008 1 3 0 16.40 4.11 5.4182 -2 2 1 16.65 1.60 5.3398 0 2 1 16.92 52.98 5.2541 -3 1 1 17.39 96.02 5.1136 1 1 1 17.56 55.35 5.0644 3 1 0 19.09 45.99 4.6587 -1 3 1 19.81 4.12 4.4908 0 4 0 20.40 15.74 4.3619 -4 0 1 20.99 2.53 4.2415 2 0 1 22.36 41.41 3.9830 1 3 1 22.50 19.67 3.9589 4 0 0 22.49 24.94 3.9596 3 3 0 22.70 28.36 3.9236 -4 2 1 22.80 45.29 3.9063 2 4 0 23.23 44.35 3.8353 2 2 1 23.79 3.58 3.7463 -2 4 1 24.04 17.86 3.7079 -2 0 2 23.96 10.42 3.7201 0 4 1 24.61 11.71 3.6226 4 2 0 25.04 32.01 3.5621 -3 1 2 25.36 12.19 3.5173 -1 1 2 25.46 10.25 3.5036 1 5 0 25.71 12.77 3.4696 -5 1 1 26.03 44.91 3.4273 -2 2 2 26.34 1.95 3.3883 3 1 1 26.27 31.45 3.3968 -4 0 2 26.89 19.77 3.3204 0 0 2 28.12 49.47 3.1772 -4 2 2 28.65 2.20 3.1190 5 1 0 28.56 31.04 3.1289 -4 4 1 28.77 1.13 3.1068 -3 3 2 28.99 3.94 3.0836 2 4 1 29.05 14.40 3.0770 -1 3 2 29.48 15.13 3.0331 -5 1 2 29.92 16.78 2.9895 3 3 1 29.74 16.20 3.0069 -3 5 1 29.88 22.85 2.9939 0 6 0 30.02 56.42 2.9799 1 5 1 30.12 2.54 2.9697 4 4 0 30.31 19.38 2.9521 1 1 2 30.12 50.39 2.9700 3 5 0 30.39 8.28 2.9443 -6 0 1 31.06 11.16 2.8820 4 0 1 31.32 2.84 2.8593 -2 4 2 32.00 71.81 2.7996 5 3 0 32.02 19.37 2.7978 -6 2 1 31.99 3.19 2.8004 2 6 0 32.66 2.96 2.7442 4 2 1 32.75 7.59 2.7370 -5 3 2 32.72 26.56 2.7397 -2 6 1 32.84 6.24 2.7293 0 6 1 33.10 1.58 2.7091 -4 4 2 33.50 2.95 2.6770 1 3 2 33.63 1.25 2.6672 2 0 2 33.60 8.16 2.6699 0 4 2 34.00 1.36 2.6393 6 0 0 34.16 5.36 2.6270 -6 2 2 35.13 9.38 2.5568 2 2 2 35.15 5.72 2.5550 -3 5 2 35.48 10.86 2.5322 6 2 0 35.39 8.65 2.5383 -1 5 2 35.46 15.12 2.5331 1 7 0 35.65 7.17 2.5202 -5 5 1 36.16 5.18 2.4859 -7 1 1 36.12 7.05 2.4885 3 5 1 36.52 4.54 2.4623 -6 4 1 36.65 1.88 2.4535 -4 0 3 36.43 2.70 2.4684 -4 6 1 37.00 7.14 2.4314 -2 0 3 36.77 11.24 2.4459 2 6 1 37.09 14.91 2.4255 4 4 1 37.15 4.26 2.4219 -7 1 2 37.70 4.69 2.3879 4 6 0 38.05 10.87 2.3668 -4 2 3 38.27 5.81 2.3533 3 1 2 38.17 3.70 2.3591 -5 1 3 38.38 3.91 2.3469 -2 2 3 38.44 4.78 2.3435 -6 4 2 38.55 1.93 2.3372 -5 5 2 38.68 2.31 2.3294 -2 6 2 38.75 3.55 2.3251 -3 7 1 38.97 2.77 2.3125 1 7 1 39.05 5.69 2.3079 3 7 0 39.31 6.77 2.2932 2 4 2 39.46 1.93 2.2849 -3 3 3 39.58 3.35 2.2783 5 3 1 39.63 5.48 2.2754 6 4 0 39.86 1.87 2.2630 -7 3 2 40.20 1.86 2.2445 7 1 0 40.18 4.51 2.2454 0 8 0 40.92 2.48 2.2067 3 3 2 41.13 5.20 2.1958 -6 2 3 41.40 2.74 2.1819 -8 0 1 42.06 2.00 2.1493 0 2 3 41.98 2.70 2.1531 -4 4 3 42.29 4.67 2.1382 -2 4 3 42.65 4.73 2.1207 4 0 2 42.66 3.70 2.1202 -8 2 1 42.75 8.54 2.1162 7 3 0 42.87 2.78 2.1105 -7 1 3 43.37 15.42 2.0874 6 2 1 43.18 3.83 2.0963 -3 7 2 43.38 1.78 2.0870 -1 7 2 43.61 11.34 2.0763 4 6 1 44.07 3.16 2.0558 1 1 3 44.03 1.59 2.0576 -7 5 1 44.51 2.39 2.0365 -3 5 3 44.84 8.47 2.0220 -6 4 3 44.87 3.98 2.0209 -7 5 2 45.51 2.42 1.9938 5 7 0 45.86 1.78 1.9795 8 0 0 45.85 2.70 1.9798 6 6 0 45.74 1.39 1.9845 2 8 1 45.84 1.14 1.9803 1 9 0 46.28 3.40 1.9625 -8 4 1 46.07 3.43 1.9709 -5 7 2 46.30 6.26 1.9618 -8 4 2 46.44 1.04 1.9559 1 3 3 46.32 19.62 1.9608 -1 5 3 46.70 4.26 1.9456 -9 1 2 46.94 11.35 1.9364 6 4 1 47.02 1.24 1.9331 8 2 0 47.08 2.36 1.9310 -8 2 3 47.33 1.34 1.9213 2 0 3 47.17 2.25 1.9273 -1 9 1 48.47 1.56 1.8788 2 2 3 48.62 1.94 1.8732 -4 8 2 48.98 3.70 1.8603 -9 3 2 48.73 2.07 1.8694 1 9 1 49.16 4.06 1.8540 -4 0 4 48.79 2.67 1.8669 3 9 0 49.61 1.69 1.8380 -5 1 4 49.97 4.81 1.8256 -3 1 4 49.87 2.51 1.8292 -7 5 3 50.24 2.14 1.8164 5 3 2 50.22 2.87 1.8171 -6 0 4 50.44 1.18 1.8096 -8 4 3 50.55 1.85 1.8061 -6 6 3 50.94 1.04 1.7932 1 5 3 50.84 6.11 1.7963 0 10 0 51.34 2.75 1.7799 0 6 3 51.67 1.61 1.7695 3 1 3 51.33 2.37 1.7803 -3 7 3 51.43 4.95 1.7772 5 7 1 51.71 1.94 1.7681 -10 0 2 51.79 1.41 1.7656 -5 3 4 51.61 2.48 1.7713 4 8 1 51.66 14.53 1.7699 -7 7 2 52.01 1.12 1.7587 -2 2 4 51.86 1.03 1.7633 -8 6 1 52.06 1.18 1.7572 -7 1 4 52.14 4.14 1.7546 -3 3 4 52.45 3.45 1.7449 -5 7 3 52.30 5.39 1.7495 -3 9 2 52.78 2.58 1.7348 -10 2 2 52.92 1.40 1.7306 4 6 2 52.67 1.05 1.7382 -5 9 1 52.80 3.28 1.7340 0 10 1 53.01 6.12 1.7277 3 9 1 53.34 2.40 1.7177 2 8 2 53.79 2.72 1.7045 3 3 3 53.92 1.43 1.7007 8 0 1 54.00 1.86 1.6984 -8 0 4 54.01 3.81 1.6980 -9 5 1 54.15 4.79 1.6940 -10 0 3 54.05 3.51 1.6970 7 7 0 54.48 1.25 1.6845 -6 4 4 54.34 3.01 1.6886 5 9 0 55.04 8.22 1.6688 -8 2 4 55.18 2.33 1.6649 -1 3 4 55.67 4.27 1.6512 8 6 0 55.91 1.12 1.6448 4 0 3 55.32 1.82 1.6610 -4 10 1 55.73 5.98 1.6496 -2 8 3 55.57 2.69 1.6541 2 10 1 55.97 3.80 1.6431 -5 5 4 56.36 1.68 1.6325 0 2 4 56.30 2.42 1.6343 -3 5 4 56.24 1.58 1.6358 4 10 0 56.96 11.40 1.6170 2 6 3 57.05 1.20 1.6145 -9 1 4 57.26 1.12 1.6091 -10 4 1 56.97 1.40 1.6166 -2 10 2 57.87 4.56 1.5936 3 5 3 57.99 1.55 1.5905 8 4 1 58.27 2.14 1.5836 10 0 0 57.83 4.89 1.5945 -6 8 3 58.23 1.05 1.5846 -7 5 4 58.41 1.19 1.5802 9 5 0 58.67 1.10 1.5737 1 1 4 59.00 2.01 1.5657 7 1 2 59.04 1.61 1.5647 -9 3 4 59.26 1.44 1.5595 10 2 0 59.15 1.57 1.5620 -11 1 3 59.04 4.36 1.5648 -8 8 1 59.17 1.03 1.5615 1 11 1 59.23 2.27 1.5601 3 11 0 59.59 4.51 1.5515 6 8 1 60.01 1.00 1.5418 4 8 2 60.05 1.74 1.5408 -9 7 1 61.05 1.21 1.5178 5 1 3 60.62 2.21 1.5277 3 9 2 61.10 1.34 1.5168 -11 3 3 60.76 1.47 1.5245 4 10 1 61.88 1.18 1.4995 -5 7 4 62.28 3.35 1.4909 9 3 1 62.01 1.31 1.4967 7 9 0 62.28 2.02 1.4907 -9 7 3 62.00 3.67 1.4969 0 12 0 62.56 6.98 1.4849 8 8 0 62.96 2.25 1.4762 5 3 3 62.84 1.32 1.4788 8 6 1 62.60 2.52 1.4839 -8 8 3 62.55 1.67 1.4850 6 10 0 63.67 1.53 1.4615 3 7 3 64.10 5.52 1.4528 -12 2 2 64.07 1.67 1.4533 -4 2 5 64.14 2.92 1.4519 0 6 4 64.18 1.59 1.4512 9 7 0 64.88 2.52 1.4370 -11 5 3 64.61 4.61 1.4425 -5 11 2 64.91 6.23 1.4366 1 9 3 65.27 2.24 1.4295 -11 5 1 65.61 2.46 1.4228 8 2 2 65.06 3.48 1.4335 1 11 2 65.70 3.75 1.4211 -12 0 1 65.71 1.48 1.4209 -8 2 5 65.92 3.90 1.4170 -2 0 5 66.08 1.58 1.4138 6 0 3 66.02 1.09 1.4150 9 5 1 66.07 4.28 1.4141 -11 3 4 66.48 1.05 1.4063 -6 4 5 65.97 2.34 1.4159 -4 12 1 67.00 2.24 1.3966 6 2 3 66.43 1.99 1.4073 -6 10 3 66.86 2.07 1.3993 -4 4 5 66.91 1.98 1.3984 -9 1 5 67.44 2.79 1.3886 10 2 1 66.96 1.56 1.3974 -9 9 2 67.10 1.19 1.3948 0 10 3 67.54 2.82 1.3868 -8 10 1 68.43 4.24 1.3709 -5 5 5 68.44 1.47 1.3707 4 10 2 68.55 1.79 1.3688 -7 11 1 69.13 1.43 1.3587 -10 0 5 69.22 4.35 1.3571 -7 5 5 68.91 1.76 1.3626 -3 11 3 69.37 1.67 1.3546 -8 8 4 69.18 3.67 1.3579 -7 11 2 69.96 2.81 1.3447 -3 5 5 69.92 1.01 1.3453 1 7 4 70.22 2.79 1.3403 7 7 2 70.62 1.74 1.3336 4 0 4 70.36 1.25 1.3380 -11 7 3 70.28 1.27 1.3392 -1 11 3 70.73 3.62 1.3318 -11 7 1 71.14 1.11 1.3252 9 1 2 71.01 2.02 1.3273 -6 6 5 71.39 1.57 1.3211 -12 6 2 71.55 1.09 1.3185 -13 3 3 72.10 3.16 1.3099 5 7 3 72.22 2.06 1.3079 -12 6 3 72.38 4.23 1.3054 2 12 2 73.43 1.27 1.2893 11 1 1 73.71 1.18 1.2852 7 3 3 73.74 1.08 1.2846 -1 5 5 74.00 1.28 1.2808 -2 6 5 73.58 2.10 1.2870 -5 13 1 74.48 1.55 1.2737 1 1 5 74.49 1.15 1.2736 0 4 5 74.58 1.36 1.2722 10 6 1 74.20 3.66 1.2779 -4 12 3 75.18 1.74 1.2635 11 3 1 74.79 4.57 1.2692 -2 10 4 75.80 1.70 1.2547 5 1 4 74.98 3.46 1.2665 5 13 0 75.78 1.24 1.2550 -14 0 2 74.97 1.39 1.2666 2 14 0 75.86 3.02 1.2539 -9 11 2 77.07 1.63 1.2373 -10 6 5 76.86 1.37 1.2400 0 12 3 77.25 1.22 1.2348 7 9 2 77.44 1.56 1.2322 -7 1 6 77.52 4.39 1.2311 -12 8 2 77.80 1.93 1.2273 -13 5 1 77.28 2.48 1.2344 -8 12 1 78.07 1.15 1.2239 2 0 5 78.33 1.16 1.2204 10 2 2 78.20 2.87 1.2221 -14 0 4 77.77 2.94 1.2278 6 12 1 77.75 1.08 1.2281 2 14 1 78.65 1.71 1.2163 11 5 1 78.93 1.33 1.2126 2 2 5 79.24 1.25 1.2087 -9 1 6 79.44 1.35 1.2061 -3 13 3 80.06 1.16 1.1983 -2 8 5 80.21 1.32 1.1964 6 8 3 79.90 1.93 1.2003 -4 14 2 81.52 1.88 1.1805 -13 3 5 81.84 1.53 1.1767 6 2 4 81.91 2.52 1.1759 -11 9 4 82.53 1.25 1.1686 -10 10 4 83.06 1.14 1.1625 -10 8 5 84.92 1.06 1.1416 -14 2 5 85.90 1.15 1.1311 14 0 0 86.06 2.62 1.1294 9 3 3 85.60 1.01 1.1343 -5 15 1 87.69 1.89 1.1125 -2 10 5 88.37 1.42 1.1057 -10 6 6 88.37 1.42 1.1057 -10 6 6 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.