Zippeite Burns P C, Deely K M, Hayden L A The Canadian Mineralogist 41 (2003) 687-706 The crystal chemistry of the zippeite group Sample: SZIPPNH4I _database_code_amcsd 0005849 CELL PARAMETERS: 8.6987 14.1660 17.8470 90.000 104.117 90.000 SPACE GROUP: C2/m X-RAY WAVELENGTH: 1.541838 Cell Volume: 2132.794 Density (g/cm3): 4.398 MAX. ABS. INTENSITY / VOLUME**2: 197.4021529 RIR: 14.614 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 10.22 16.11 8.6540 0 0 2 2 12.21 1.34 7.2486 -1 1 1 4 12.50 100.00 7.0830 0 2 0 2 14.20 1.93 6.2361 1 1 1 4 16.17 12.17 5.4812 0 2 2 4 20.53 5.01 4.3270 0 0 4 2 21.06 4.67 4.2184 -2 0 2 2 21.06 3.61 4.2180 2 0 0 2 21.57 1.34 4.1205 -1 3 1 4 22.77 3.66 3.9050 1 3 1 4 24.10 4.61 3.6925 0 2 4 4 24.56 4.32 3.6243 -2 2 2 4 24.56 4.06 3.6241 2 2 0 4 25.02 1.57 3.5596 -1 3 3 4 25.15 14.93 3.5415 0 4 0 2 25.65 18.27 3.4734 -2 0 4 2 25.65 17.55 3.4727 2 0 2 2 27.21 2.86 3.2777 0 4 2 4 28.62 24.11 3.1186 -2 2 4 4 28.63 24.94 3.1181 2 2 2 4 31.00 12.01 2.8847 0 0 6 2 31.72 1.07 2.8211 -1 3 5 4 32.68 1.37 2.7406 0 4 4 4 33.02 1.50 2.7124 -2 4 2 4 33.07 1.00 2.7088 -2 0 6 2 33.08 1.19 2.7082 2 0 4 2 33.54 13.48 2.6716 0 2 6 4 34.18 3.32 2.6233 1 5 1 4 35.76 1.03 2.5106 -1 5 3 4 36.22 5.87 2.4798 -2 4 4 4 36.23 6.70 2.4795 2 4 2 4 38.12 2.70 2.3610 0 6 0 2 39.57 2.02 2.2778 0 6 2 4 40.32 7.08 2.2366 0 4 6 4 40.90 1.09 2.2066 -1 5 5 4 41.53 5.71 2.1747 -4 0 2 2 41.75 1.01 2.1635 0 0 8 2 42.03 1.78 2.1497 -2 0 8 2 42.04 1.37 2.1493 2 0 6 2 42.88 1.14 2.1092 -4 0 4 2 42.88 1.29 2.1090 4 0 0 2 43.53 6.52 2.0789 -4 2 2 4 43.54 1.11 2.0787 3 3 3 4 43.75 1.42 2.0691 0 2 8 4 44.02 1.99 2.0570 -2 2 8 4 44.03 1.87 2.0567 2 2 6 4 44.84 1.52 2.0215 -4 2 4 4 44.84 1.79 2.0213 4 2 0 4 45.44 1.23 1.9959 -3 5 3 4 46.51 3.49 1.9526 -2 6 4 4 46.51 3.96 1.9525 2 6 2 4 46.75 3.44 1.9429 1 7 1 4 47.99 1.03 1.8958 -1 7 3 4 48.58 1.11 1.8740 -4 2 6 4 49.16 4.28 1.8532 -4 4 2 4 49.61 1.08 1.8377 -2 4 8 4 49.91 3.21 1.8271 0 6 6 4 50.94 1.37 1.7927 3 5 3 4 51.62 1.11 1.7708 0 8 0 2 51.99 2.26 1.7590 -2 0 10 2 52.00 2.28 1.7587 2 0 8 2 52.14 2.09 1.7542 -1 7 5 4 52.71 2.63 1.7367 -4 0 8 2 52.72 2.55 1.7363 4 0 4 2 53.69 3.84 1.7071 -2 2 10 4 53.70 3.89 1.7069 2 2 8 4 54.39 3.60 1.6867 -4 2 8 4 54.41 3.73 1.6864 4 2 4 4 54.58 1.03 1.6813 0 2 10 4 55.98 1.43 1.6426 -3 7 3 4 57.63 2.23 1.5995 -4 6 2 4 58.51 1.03 1.5776 -2 8 4 4 58.51 1.01 1.5775 2 8 2 4 58.60 2.21 1.5754 -2 4 10 4 58.60 2.39 1.5752 2 4 8 4 59.26 1.94 1.5593 -4 4 8 4 59.27 2.27 1.5590 4 4 4 4 60.29 2.04 1.5351 1 9 1 4 60.79 1.31 1.5237 3 7 3 4 61.44 1.31 1.5091 0 8 6 4 61.91 1.13 1.4988 1 7 7 4 64.90 1.44 1.4367 -1 9 5 4 66.11 1.37 1.4133 0 2 12 4 66.26 1.51 1.4106 -2 6 10 4 66.27 1.50 1.4104 2 6 8 4 66.49 1.00 1.4061 -6 0 6 2 66.88 1.11 1.3990 -4 6 8 4 66.89 1.25 1.3988 4 6 4 4 67.97 1.56 1.3792 -6 2 6 4 67.97 1.53 1.3791 6 2 0 4 68.29 1.37 1.3735 -3 9 3 4 68.31 1.19 1.3731 -4 8 2 4 70.50 1.26 1.3358 0 4 12 4 84.86 1.05 1.1426 -6 2 12 4 84.88 1.00 1.1424 6 2 6 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.