Alunite Zema M, Callegari A M, Tarantino S C, Gasparini E, Ghigna P Mineralogical Magazine 76 (2012) 613-623 Thermal expansion of alunite up to dehydroxylation and collapse of the crystal structure Note: T = 300 C Locality: Hungary _database_code_amcsd 0018987 CELL PARAMETERS: 6.9859 6.9859 17.4810 90.000 90.000 120.000 SPACE GROUP: R-3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 738.825 Density (g/cm3): 2.751 MAX. ABS. INTENSITY / VOLUME**2: 15.11738774 RIR: 1.790 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 15.21 1.76 5.8270 0 0 3 2 15.50 15.62 5.7173 1 0 1 6 17.83 59.00 4.9745 0 1 2 6 25.50 28.08 3.4929 1 1 0 6 29.51 5.35 3.0271 0 1 5 6 29.82 100.00 2.9959 1 1 3 12 29.98 26.46 2.9807 0 2 1 6 30.69 8.60 2.9135 0 0 6 2 36.11 4.91 2.4873 0 2 4 6 39.02 34.15 2.3084 1 0 7 6 39.39 2.67 2.2876 2 0 5 6 40.79 5.76 2.2122 1 2 2 12 44.73 1.27 2.0261 2 1 4 12 46.77 5.63 1.9423 0 0 9 2 47.72 32.52 1.9058 0 3 3 6 47.72 1.19 1.9058 3 0 3 6 51.60 1.37 1.7713 2 0 8 6 52.39 22.87 1.7465 2 2 0 6 55.79 2.67 1.6479 3 1 2 12 58.42 2.04 1.5798 1 2 8 12 58.96 1.02 1.5665 1 3 4 12 61.24 18.40 1.5135 0 2 10 6 61.28 2.64 1.5128 3 1 5 12 61.54 1.14 1.5069 4 0 1 6 61.95 7.93 1.4980 2 2 6 12 62.30 1.99 1.4903 0 4 2 6 65.28 2.56 1.4293 4 0 4 6 66.88 1.61 1.3990 0 3 9 6 67.22 3.65 1.3928 1 3 7 12 67.47 1.07 1.3882 0 4 5 6 68.44 2.92 1.3708 2 3 2 12 71.46 2.03 1.3202 4 1 0 12 71.93 1.82 1.3127 1 0 13 6 72.83 2.05 1.2987 2 2 9 12 73.56 2.59 1.2876 1 4 3 12 73.56 4.63 1.2876 4 1 3 12 78.91 6.54 1.2132 3 2 7 12 79.11 2.77 1.2105 1 3 10 12 81.51 1.88 1.1809 0 3 12 6 82.92 1.09 1.1643 3 3 0 6 83.38 4.31 1.1591 2 1 13 12 84.75 2.61 1.1438 4 0 10 6 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.