Bechererite Hoffmann C, Armbruster T, Giester G American Mineralogist 82 (1997) 1014-1018 The acentric structure (P3) of bechererite, Zn7Cu(OH)13[SiO(OH)3SO4] Note U(1,2) for Zn2, Zn21, and O1 changed to match symmetry constraints. _database_code_amcsd 0001950 CELL PARAMETERS: 8.3190 8.3190 7.3770 90.000 90.000 120.000 SPACE GROUP: P3 X-RAY WAVELENGTH: 1.541838 Cell Volume: 442.133 Density (g/cm3): 3.618 MAX. ABS. INTENSITY / VOLUME**2: 39.20703272 RIR: 3.528 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 12.00 100.00 7.3770 0 0 1 1 12.29 8.20 7.2045 1 0 0 3 17.20 11.02 5.1542 0 1 1 3 21.36 17.86 4.1595 1 1 0 3 24.13 19.71 3.6885 0 0 2 1 24.57 19.55 3.6232 1 1 1 3 24.57 15.50 3.6232 2 -1 1 3 24.72 2.45 3.6022 2 0 0 3 27.16 5.08 3.2832 0 1 2 3 27.16 26.06 3.2832 1 0 2 3 27.56 1.22 3.2369 0 2 1 3 27.56 3.40 3.2369 2 0 1 3 32.44 4.58 2.7597 1 1 2 3 32.44 6.71 2.7597 2 -1 2 3 32.89 33.68 2.7230 1 2 0 3 32.89 4.80 2.7230 2 1 0 3 34.81 7.48 2.5771 0 2 2 3 34.81 1.49 2.5771 2 0 2 3 35.13 5.87 2.5546 1 2 1 3 35.13 4.84 2.5546 -1 3 1 3 35.13 1.86 2.5546 2 1 1 3 35.13 52.29 2.5546 3 -1 1 3 37.45 3.79 2.4015 3 0 0 3 38.69 2.70 2.3272 0 1 3 3 39.46 1.24 2.2835 0 3 1 3 41.21 20.08 2.1907 3 -1 2 3 41.21 3.15 2.1907 1 2 2 3 41.21 2.96 2.1907 2 1 2 3 42.72 1.19 2.1168 1 1 3 3 42.72 1.97 2.1168 2 -1 3 3 43.51 1.51 2.0798 2 2 0 3 44.62 1.96 2.0309 2 0 3 3 45.05 2.17 2.0125 0 3 2 3 45.05 2.17 2.0125 3 0 2 3 45.39 1.78 1.9982 1 3 0 3 49.42 4.59 1.8442 0 0 4 1 49.98 8.65 1.8250 1 2 3 3 49.98 1.15 1.8250 2 1 3 3 49.98 2.91 1.8250 -1 3 3 3 49.98 15.73 1.8250 3 -1 3 3 50.37 2.98 1.8116 4 -2 2 3 50.37 1.45 1.8116 2 2 2 3 51.12 2.03 1.7866 0 1 4 3 52.05 2.39 1.7569 3 1 2 3 52.05 4.18 1.7569 -1 4 2 3 56.89 1.12 1.6185 0 4 2 3 56.89 3.19 1.6185 4 0 2 3 58.73 20.07 1.5721 4 1 0 3 60.18 5.30 1.5376 -1 5 1 3 60.18 5.28 1.5376 4 1 1 3 60.64 14.16 1.5270 1 2 4 3 60.64 8.34 1.5270 3 -1 4 3 61.48 2.09 1.5083 5 -2 2 3 61.48 1.01 1.5083 2 3 2 3 61.48 1.10 1.5083 3 2 2 3 63.00 1.29 1.4754 0 0 5 1 64.42 1.38 1.4463 -1 5 2 3 64.42 1.50 1.4463 4 1 2 3 68.97 2.94 1.3615 2 4 0 3 70.12 1.65 1.3421 0 5 2 3 70.31 4.37 1.3389 2 4 1 3 72.92 3.64 1.2972 1 2 5 3 74.25 1.53 1.2773 2 4 2 3 80.23 1.62 1.1964 4 1 4 3 80.23 1.53 1.1964 -1 5 4 3 80.66 2.66 1.1911 2 4 3 3 80.66 1.21 1.1911 6 -2 3 3 89.47 3.29 1.0954 6 -2 4 3 89.47 1.74 1.0954 2 4 4 3 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.