Tschermigite Abdeen A M, Will G, Schaefer W, Kirfel A, Bargouth M O, Recker K, Weiss A Zeitschrift fur Kristallographie 157 (1981) 147-166 X-ray and neutron diffraction study of alums II. The crystal structure of methylammonium aluminium alum III. The crystal structure of ammonium aluminium alum Locality: synthetic Sample: X-ray data _database_code_amcsd 0010843 CELL PARAMETERS: 12.2420 12.2420 12.2420 90.000 90.000 90.000 SPACE GROUP: Pa3 X-RAY WAVELENGTH: 1.541838 Cell Volume: 1834.666 Density (g/cm3): 6.766 MAX. ABS. INTENSITY / VOLUME**2: 261.1104707 RIR: 12.566 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 14.47 100.00 6.1210 2 0 0 6 16.19 92.95 5.4748 2 1 0 12 17.75 18.06 4.9978 2 1 1 24 20.52 21.61 4.3282 2 2 0 12 21.78 10.87 4.0807 2 2 1 24 24.11 3.02 3.6911 3 1 1 24 26.25 5.63 3.3953 3 0 2 12 27.26 2.63 3.2718 3 2 1 24 27.26 21.91 3.2718 3 1 2 24 29.18 7.92 3.0605 4 0 0 6 31.86 1.78 2.8085 3 3 1 24 32.71 6.39 2.7374 4 0 2 12 33.55 11.82 2.6714 4 1 2 24 34.36 3.79 2.6100 3 3 2 24 37.46 2.34 2.4009 4 3 1 24 39.65 7.72 2.2733 4 3 2 24 40.35 4.23 2.2351 5 1 2 24 42.42 10.60 2.1311 4 4 1 24 43.09 4.70 2.0995 4 3 3 24 44.40 1.16 2.0403 4 4 2 24 44.40 1.28 2.0403 6 0 0 6 45.05 1.03 2.0126 6 1 0 12 45.68 1.98 1.9859 5 3 2 24 45.68 1.43 1.9859 5 2 3 24 46.94 12.90 1.9356 6 0 2 12 47.56 1.92 1.9119 4 4 3 24 47.56 2.82 1.9119 6 2 1 24 47.56 1.46 1.9119 6 1 2 24 47.56 2.18 1.9119 5 0 4 12 48.17 1.03 1.8890 5 1 4 24 49.38 4.22 1.8456 6 2 2 24 49.98 1.04 1.8249 5 4 2 24 52.31 1.55 1.7489 6 3 2 24 52.31 1.53 1.7489 6 2 3 24 52.88 1.54 1.7313 5 3 4 24 54.01 2.42 1.6977 6 0 4 12 55.13 1.12 1.6659 5 5 2 24 56.23 1.30 1.6359 6 4 2 24 56.23 4.29 1.6359 6 2 4 24 56.78 2.54 1.6215 7 2 2 24 69.05 1.62 1.3602 8 4 1 24 79.91 1.64 1.2004 8 6 2 24 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.