Natroalunite Okada K, Hirabayashi J, Ossaka J Neues Jahrbuch fur Mineralogie, Monatshefte 1982 (1982) 534-540 Crystal structure of natroalunite and crystal chemistry of the alunite group Locality: Sonomi-dake, Makurazaki-city, Kagoshima Prefecture, Japan _database_code_amcsd 0014771 CELL PARAMETERS: 6.9900 6.9900 16.9050 90.000 90.000 120.000 SPACE GROUP: R-3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 715.320 Density (g/cm3): 2.819 MAX. ABS. INTENSITY / VOLUME**2: 14.43826539 RIR: 1.668 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 15.55 10.41 5.6991 1 0 1 6 15.73 2.69 5.6350 0 0 3 2 18.02 64.85 4.9215 0 1 2 6 25.49 27.10 3.4950 1 1 0 6 29.99 37.45 2.9794 0 2 1 6 30.09 100.00 2.9701 1 1 3 12 30.28 7.40 2.9518 0 1 5 6 31.76 9.57 2.8175 0 0 6 2 36.51 3.72 2.4608 0 2 4 6 39.98 2.34 2.2551 2 0 5 6 40.20 36.83 2.2431 1 0 7 6 40.86 6.61 2.2085 1 2 2 12 47.88 35.71 1.8997 0 3 3 6 48.21 2.00 1.8877 0 2 7 6 48.46 5.38 1.8783 0 0 9 2 52.36 26.75 1.7475 2 2 0 6 52.84 1.16 1.7326 2 0 8 6 55.83 3.72 1.6468 3 1 2 12 59.22 2.07 1.5603 1 3 4 12 59.55 3.98 1.5524 1 2 8 12 61.52 1.95 1.5074 4 0 1 6 61.68 2.91 1.5037 3 1 5 12 62.33 2.56 1.4897 0 4 2 6 62.55 8.83 1.4851 2 2 6 12 62.98 20.42 1.4759 0 2 10 6 65.51 2.76 1.4248 4 0 4 6 67.85 1.29 1.3813 0 4 5 6 68.01 3.32 1.3785 1 3 7 12 68.21 2.63 1.3749 0 3 9 6 68.46 3.81 1.3704 2 3 2 12 68.47 1.37 1.3703 2 0 11 6 71.41 2.30 1.3210 4 1 0 12 73.66 2.87 1.2861 1 4 3 12 73.66 5.49 1.2861 4 1 3 12 74.11 2.16 1.2794 2 2 9 12 74.65 1.93 1.2714 1 0 13 6 79.64 7.92 1.2039 3 2 7 12 80.65 3.29 1.1913 1 3 10 12 82.86 1.40 1.1650 3 3 0 6 83.73 1.33 1.1551 0 3 12 6 85.98 4.63 1.1305 2 1 13 12 86.27 2.98 1.1276 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.