Vishnevite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from single crystal data of R061139 Hassan I, Grundy H D The Canadian Mineralogist 22 (1984) 333-349 The character of the cancrinite-vishnevite solid-solution series CELL PARAMETERS: 12.7140 12.7140 5.1960 90.000 90.000 120.000 SPACE GROUP: P6_3 ATOM X Y Z OCCUPANCY ISO(B) O 0.20170 0.40490 0.66980 1.000 1.327 O 0.11750 0.55270 0.72780 1.000 1.718 O 0.04060 0.35990 0.03930 1.000 1.379 O 0.32550 0.35220 0.05610 1.000 1.350 Si 0.33800 0.41370 0.75060 1.000 0.683 Al 0.08310 0.41240 0.75000 1.000 0.680 O 0.06150 0.11330 0.67250 0.240 2.685 O 0.04960 0.10900 0.95410 0.240 4.974 S 0.00000 0.00000 0.29180 0.240 3.790 O 0.00000 0.00000 0.07370 0.240 3.553 O 0.61840 0.30430 0.68930 0.330 4.422 Na 0.66667 0.33333 0.12720 1.000 2.820 Na 0.13190 0.26110 0.28850 0.750 4.733 K 0.13190 0.26110 0.28850 0.170 4.733 Ca 0.13190 0.26110 0.28850 0.020 4.733 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 0.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 10 +/- 10 +/- 4 MAX. ABS. INTENSITY / VOLUME**2: 7.952209051 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 8.03 2.41 11.0106 1 0 0 13.93 56.94 6.3570 1 1 0 16.10 2.17 5.5053 2 0 0 18.89 84.68 4.6990 1 0 1 21.35 6.72 4.1616 1 2 0 21.35 2.56 4.1616 2 1 0 23.54 2.10 3.7787 2 0 1 24.25 56.12 3.6702 3 0 0 27.46 52.40 3.2482 1 2 1 27.46 47.60 3.2482 2 1 1 29.80 5.06 2.9978 3 0 1 32.53 31.55 2.7527 4 0 0 34.05 8.14 2.6328 1 3 1 34.05 13.90 2.6328 3 1 1 34.52 28.30 2.5980 0 0 2 35.50 4.25 2.5286 1 0 2 35.54 1.96 2.5260 2 3 0 35.54 1.95 2.5260 3 2 0 36.96 30.82 2.4324 4 0 1 37.39 1.06 2.4049 1 1 2 37.43 1.05 2.4027 1 4 0 37.43 2.29 2.4027 4 1 0 39.67 6.77 2.2718 2 3 1 39.67 4.83 2.2718 3 2 1 41.40 4.09 2.1808 1 4 1 41.40 4.35 2.1808 4 1 1 42.64 8.76 2.1205 3 0 2 42.67 17.12 2.1190 3 3 0 44.69 4.39 2.0276 5 0 1 48.16 9.13 1.8894 4 0 2 50.39 4.72 1.8111 2 3 2 50.39 3.33 1.8111 3 2 2 50.41 2.13 1.8101 3 4 0 50.41 1.19 1.8101 4 3 0 51.83 3.76 1.7640 1 4 2 51.83 4.95 1.7640 4 1 2 51.86 1.92 1.7631 2 5 0 51.86 4.02 1.7631 5 2 0 53.56 2.64 1.7110 1 0 3 53.61 3.35 1.7094 3 4 1 53.61 1.86 1.7094 4 3 1 55.00 1.12 1.6696 2 5 1 55.00 2.61 1.6696 5 2 1 55.63 2.86 1.6522 2 0 3 56.00 2.67 1.6421 3 3 2 57.65 5.44 1.5990 1 2 3 57.65 4.90 1.5990 2 1 3 57.70 1.99 1.5978 1 6 1 57.70 1.78 1.5978 6 1 1 58.04 6.22 1.5892 4 4 0 58.70 1.20 1.5729 3 5 0 61.56 1.13 1.5066 1 3 3 61.56 2.18 1.5066 3 1 3 61.60 3.52 1.5055 3 5 1 61.60 3.50 1.5055 7 0 1 61.60 1.98 1.5055 5 3 1 61.90 5.63 1.4989 6 0 2 63.46 7.11 1.4660 4 0 3 63.50 2.15 1.4650 2 6 1 63.50 2.13 1.4650 6 2 1 63.80 1.32 1.4589 5 2 2 63.82 1.36 1.4584 1 7 0 63.82 3.23 1.4584 7 1 0 65.32 1.73 1.4285 2 3 3 65.32 1.66 1.4285 3 2 3 68.13 1.10 1.3763 8 0 0 69.31 7.81 1.3557 4 4 2 70.82 9.95 1.3304 8 0 1 72.55 1.06 1.3029 5 1 3 72.55 1.16 1.3029 1 5 3 72.60 1.05 1.3022 2 7 1 72.81 1.78 1.2990 0 0 4 74.56 1.84 1.2727 1 1 4 74.63 1.53 1.2717 1 7 2 74.63 2.96 1.2717 7 1 2 76.05 2.17 1.2514 3 4 3 76.05 1.27 1.2514 4 3 3 76.10 1.98 1.2508 8 1 1 78.03 1.21 1.2246 3 0 4 78.10 1.88 1.2237 3 6 2 78.10 2.38 1.2237 6 3 2 78.67 1.05 1.2162 8 0 2 79.75 1.15 1.2025 2 2 4 82.03 1.34 1.1748 4 0 4 82.91 1.64 1.1644 7 0 3 84.61 1.53 1.1454 6 2 3 84.61 1.43 1.1454 2 6 3 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.