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 = 25 C
Locality: Hungary
_database_code_amcsd 0018984
CELL PARAMETERS: 6.9749 6.9749 17.3150 90.000 90.000 120.000
SPACE GROUP: R-3m
X-RAY WAVELENGTH: 1.541838
Cell Volume: 729.506
Density (g/cm3): 2.806
MAX. ABS. INTENSITY / VOLUME**2: 16.07276259
RIR: 1.865
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
15.35 1.77 5.7717 0 0 3 2
15.54 15.59 5.7034 1 0 1 6
17.91 52.79 4.9538 0 1 2 6
25.54 28.05 3.4874 1 1 0 6
29.74 4.75 3.0043 0 1 5 6
29.94 100.00 2.9849 1 1 3 12
30.03 26.67 2.9753 0 2 1 6
30.99 9.21 2.8858 0 0 6 2
36.27 4.81 2.4769 0 2 4 6
39.36 35.14 2.2891 1 0 7 6
39.59 2.93 2.2762 2 0 5 6
40.88 6.41 2.2076 1 2 2 12
44.88 1.32 2.0194 2 1 4 12
47.24 5.49 1.9239 0 0 9 2
47.85 1.29 1.9011 3 0 3 6
47.85 33.68 1.9011 0 3 3 6
51.98 1.43 1.7593 2 0 8 6
52.48 24.49 1.7437 2 2 0 6
55.90 2.64 1.6448 3 1 2 12
58.79 2.17 1.5707 1 2 8 12
59.13 1.10 1.5624 1 3 4 12
61.49 3.07 1.5081 3 1 5 12
61.65 1.23 1.5044 4 0 1 6
61.76 20.09 1.5021 0 2 10 6
62.20 8.71 1.4924 2 2 6 12
62.42 2.33 1.4876 0 4 2 6
65.46 2.77 1.4258 4 0 4 6
67.31 1.98 1.3910 0 3 9 6
67.53 3.98 1.3871 1 3 7 12
67.69 1.02 1.3842 0 4 5 6
67.85 1.04 1.3814 3 2 1 12
68.58 3.03 1.3684 2 3 2 12
71.59 2.40 1.3181 4 1 0 12
72.70 2.12 1.3007 1 0 13 6
73.27 2.07 1.2920 2 2 9 12
73.73 2.97 1.2850 1 4 3 12
73.73 5.36 1.2850 4 1 3 12
79.24 7.71 1.2090 3 2 7 12
79.63 3.36 1.2040 1 3 10 12
82.19 1.84 1.1728 0 3 12 6
83.08 1.33 1.1625 3 3 0 6
84.15 5.07 1.1505 2 1 13 12
85.28 3.10 1.1381 4 0 10 6
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XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.