Richterite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from single crystal data of R100069 Gunter M E, Dyar M D, Twamley B, Foit F F, Cornelius S American Mineralogist 88 (2003) 1970-1978 Composition, Fe3+/Sum(Fe), and crystal structure of non-asbestiform and asbestiform amphiboles from Libby, Montana, U.S.A. AMCSD#0003185 CELL PARAMETERS: 9.8840 17.9540 5.2657 90.000 104.377 90.000 SPACE GROUP: C2/m ATOM X Y Z OCCUPANCY ISO(B) Si 0.27910 0.08480 0.29600 0.995 0.869 Al 0.27910 0.08480 0.29600 0.005 0.869 Si 0.28720 0.17140 0.80310 0.995 0.869 Al 0.28720 0.17140 0.80310 0.005 0.869 Mg 0.00000 0.08860 0.50000 0.990 0.711 Al 0.00000 0.08860 0.50000 0.010 0.711 Mg 0.00000 0.17960 0.00000 0.820 0.790 Fe 0.00000 0.17960 0.00000 0.180 0.790 Mg 0.00000 0.00000 0.00000 0.840 1.579 Fe 0.00000 0.00000 0.00000 0.160 1.579 Mn 0.00000 0.27720 0.50000 0.020 1.421 Ca 0.00000 0.27720 0.50000 0.560 1.421 Na 0.00000 0.27720 0.50000 0.420 1.421 Na 0.00000 0.50000 0.00000 0.280 8.290 K 0.00000 0.50000 0.00000 0.200 8.290 O 0.11130 0.08650 0.21660 1.000 1.026 O 0.11860 0.17020 0.72690 1.000 1.105 O 0.10810 0.00000 0.71380 1.000 1.105 O 0.36340 0.24870 0.79560 1.000 1.184 O 0.34590 0.13150 0.09220 1.000 1.184 O 0.34190 0.11820 0.58770 1.000 1.105 O 0.33640 0.00000 0.29350 1.000 1.263 H 0.21480 0.00000 0.77500 1.000 2.369 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 5.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 8 +/- 16 +/- 4 MAX. ABS. INTENSITY / VOLUME**2: 5.982462247 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 9.85 18.21 8.9770 0 2 0 10.47 69.77 8.4483 1 1 0 17.48 2.59 5.0748 1 3 0 18.24 26.82 4.8635 -1 1 1 18.53 4.35 4.7872 2 0 0 19.78 23.60 4.4885 0 4 0 20.02 2.03 4.4349 0 2 1 21.03 3.24 4.2241 2 2 0 22.24 4.31 3.9964 1 1 1 23.04 20.42 3.8606 -1 3 1 26.35 61.16 3.3819 1 3 1 27.24 42.12 3.2744 2 4 0 28.40 64.88 3.1422 3 1 0 29.52 2.36 3.0260 -3 1 1 30.29 37.74 2.9512 2 2 1 30.54 7.29 2.9269 -1 5 1 31.78 14.02 2.8161 3 3 0 32.79 25.50 2.7315 -3 3 1 33.17 100.00 2.7010 1 5 1 34.76 35.30 2.5810 0 6 1 35.19 6.96 2.5504 0 0 2 35.54 60.84 2.5262 -2 0 2 36.97 1.70 2.4317 -2 2 2 37.45 2.30 2.4014 -2 6 1 37.71 5.61 2.3855 3 5 0 38.58 32.54 2.3334 -3 5 1 38.70 14.54 2.3268 -4 2 1 39.40 17.43 2.2870 -1 7 1 39.70 19.46 2.2703 -3 1 2 39.81 1.35 2.2643 3 3 1 41.00 7.52 2.2015 -2 4 2 41.53 5.02 2.1743 1 7 1 41.80 31.19 2.1612 2 6 1 42.28 5.16 2.1377 -3 3 2 42.58 1.94 2.1230 -1 5 2 44.19 17.19 2.0496 2 0 2 44.83 11.40 2.0216 3 5 1 45.05 8.64 2.0124 -4 0 2 45.36 4.30 1.9992 3 7 0 46.12 1.20 1.9683 -3 7 1 46.50 4.68 1.9529 1 9 0 46.53 1.08 1.9516 1 5 2 46.86 2.07 1.9387 4 2 1 47.09 2.78 1.9300 -3 5 2 47.77 7.80 1.9041 5 1 0 48.51 2.95 1.8765 -4 6 1 48.85 2.54 1.8644 2 4 2 49.10 9.17 1.8555 -1 9 1 49.63 2.28 1.8370 -1 7 2 49.65 3.27 1.8363 -4 4 2 50.01 3.27 1.8238 5 3 0 50.86 3.04 1.7954 0 10 0 50.91 1.73 1.7938 1 9 1 52.39 4.86 1.7464 -5 1 2 54.16 1.05 1.6936 0 10 1 54.46 1.13 1.6848 0 8 2 54.62 6.91 1.6802 -1 3 3 54.71 6.51 1.6778 -2 8 2 54.74 1.03 1.6768 -3 1 3 54.89 1.55 1.6727 -3 9 1 54.96 5.34 1.6706 0 2 3 55.54 25.14 1.6545 4 6 1 56.18 7.24 1.6372 4 8 0 57.26 10.80 1.6090 1 11 0 57.78 3.85 1.5957 6 0 0 58.67 20.40 1.5735 -1 5 3 59.13 4.53 1.5625 4 0 2 59.34 1.03 1.5573 -5 7 1 59.37 1.53 1.5567 2 10 1 60.30 10.30 1.5350 -6 0 2 61.22 3.79 1.5140 1 9 2 61.48 5.14 1.5083 5 5 1 61.53 19.50 1.5072 -2 6 3 61.93 2.20 1.4983 -4 8 2 62.03 9.79 1.4962 0 12 0 62.86 1.32 1.4783 0 6 3 62.99 3.88 1.4756 4 4 2 63.28 1.75 1.4697 2 2 3 63.58 1.92 1.4634 -2 10 2 64.08 4.08 1.4532 3 11 0 64.12 3.36 1.4524 -6 4 2 64.44 2.88 1.4459 -1 7 3 64.70 26.68 1.4407 -6 6 1 64.76 1.09 1.4396 -4 10 1 64.93 1.53 1.4363 4 10 0 65.62 1.64 1.4227 -5 3 3 66.41 1.03 1.4078 6 2 1 68.37 10.93 1.3720 5 1 2 68.84 2.43 1.3638 7 1 0 69.28 4.62 1.3562 -5 5 3 70.18 3.14 1.3410 5 3 2 70.49 6.72 1.3359 1 11 2 70.63 4.83 1.3336 2 6 3 70.92 3.45 1.3289 -3 11 2 71.62 1.85 1.3176 -5 9 2 71.73 1.20 1.3158 -1 9 3 71.86 7.91 1.3138 -7 5 1 72.50 5.72 1.3038 -1 1 4 72.71 1.17 1.3005 6 8 0 73.37 5.43 1.2905 0 12 2 73.58 13.07 1.2873 -2 12 2 73.60 2.27 1.2869 6 6 1 73.61 1.08 1.2869 -3 9 3 74.26 1.98 1.2771 -1 3 4 74.39 3.24 1.2752 0 0 4 75.23 4.65 1.2631 -4 0 4 77.12 1.07 1.2367 -7 7 1 78.15 1.07 1.2231 6 0 2 78.24 1.41 1.2219 -2 14 1 80.20 2.08 1.1968 8 0 0 80.34 7.46 1.1951 -5 11 2 82.72 1.02 1.1667 -6 10 2 83.00 1.45 1.1634 -8 4 2 83.08 3.94 1.1625 2 0 4 84.05 1.24 1.1515 4 6 3 86.22 2.31 1.1281 7 9 0 87.12 1.02 1.1187 5 3 3 88.09 1.51 1.1089 -6 4 4 88.47 1.07 1.1051 -7 7 3 89.41 1.08 1.0959 0 16 1 89.79 1.48 1.0922 3 1 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.