Birnessite Lopano C L, Heaney P J, Post J E, Hanson J, Komarneni S American Mineralogist 92 (2007) 380-387 Time-resolved structural analysis of K-and Ba-exchange reactions with synthetic Na-birnessite using synchrotron X-ray diffraction Locality: synthetic Sample: Na-birnessite _database_code_amcsd 0004276 CELL PARAMETERS: 5.1780 2.8509 7.3344 89.450 103.180 89.910 SPACE GROUP: C-1 X-RAY WAVELENGTH: 1.541838 Cell Volume: 105.412 Density (g/cm3): 3.388 MAX. ABS. INTENSITY / VOLUME**2: 73.43490208 RIR: 7.058 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 12.40 100.00 7.1408 0 0 1 2 24.94 30.25 3.5704 0 0 2 2 35.62 10.39 2.5208 2 0 0 2 36.14 2.23 2.4856 1 1 0 2 36.94 7.24 2.4335 -1 1 1 2 37.04 8.70 2.4268 -1 -1 1 2 38.75 2.90 2.3241 -2 0 2 2 39.61 1.19 2.2755 1 1 1 2 39.94 1.89 2.2575 1 -1 1 2 40.58 5.18 2.2232 2 0 1 2 41.79 6.16 2.1615 -1 1 2 2 42.09 7.20 2.1468 -1 -1 2 2 48.74 7.49 1.8683 2 0 2 2 49.81 5.82 1.8306 -1 1 3 2 50.25 5.63 1.8156 -1 -1 3 2 51.17 1.17 1.7852 0 0 4 2 55.91 2.76 1.6444 -2 0 4 2 56.20 1.40 1.6366 1 1 3 2 56.78 2.34 1.6213 1 -1 3 2 59.15 1.61 1.5620 2 0 3 2 60.11 1.87 1.5393 -1 1 4 2 60.65 1.37 1.5268 -1 -1 4 2 62.91 2.06 1.4774 -3 -1 1 2 63.00 2.60 1.4755 -3 1 1 2 64.23 1.87 1.4501 3 1 0 2 64.47 1.22 1.4453 -3 1 0 2 64.50 1.25 1.4446 -3 1 2 2 64.56 1.29 1.4434 -3 -1 2 2 65.48 1.46 1.4254 0 2 0 2 66.79 1.90 1.4006 0 2 1 2 67.09 1.38 1.3951 0 -2 1 2 67.62 1.11 1.3855 -2 0 5 2 67.72 1.32 1.3837 1 1 4 2 68.39 1.15 1.3718 1 -1 4 2 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.