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Card Information Names: Potassium Manganese Oxide Hydrate Birnessite, syn Formula: K.46 Mn1.54 Mn.46 O4 ( H2 O )1.4 PDF Number: 80-1098 Quality: calculated Subfiles: inorganic mineral COR FIZ Cell and Symmetry Information System: monoclinic Space Group: C2/m (no. 12) a: 5.14900 b: 2.84300 c: 7.17600 b: 100.760 Density (Dx): 3.492 Z: 1 Instrument Information Radiation: CuKa1 Wavelength: 1.54060 Instrument(d): calculated Cut Off: 17.7 Instrument(I): calculated I type: peak heights I/Icor: 6.30 Comments and Additional Information ICSD Number: 068918 RM ATOM H 1 +1. 2.80 Atoms not located in unit cell. NT Rietveld profile refinement applied Temperature factor: ITF General: (K-bearing). TI Crystal structure determinations of synthetic sodium, magnesium andpotassium birnessite using TEM and the Rietveld method Literature References General: Calculated from ICSD using POWD-12++ (1997) Structure: Post, J.E., Veblen, D.R. Am. Mineral. 75 477 (1990) Peak Data PeakList h k l d I 0 0 1 7.0498 999 0 0 2 3.5249 244 -2 0 1 2.5359 30 2 0 0 2.5292 42 1 1 0 2.4784 39 -1 1 1 2.4081 108 0 0 3 2.3499 2 1 1 1 2.2739 12 -2 0 2 2.2650 8 2 0 1 2.2508 91 -1 1 2 2.1207 114 1 1 2 1.9454 23 -2 0 3 1.9084 17 2 0 2 1.8943 33 -1 1 3 1.7889 78 0 0 4 1.7625 9 1 1 3 1.6323 19 -2 0 4 1.5921 11 2 0 3 1.5807 22 -1 1 4 1.5027 17 -3 1 1 1.4678 21 3 1 0 1.4503 31 -3 1 2 1.4241 25 0 2 0 1.4215 25 0 0 5 1.4100 2 0 2 1 1.3935 11 1 1 4 1.3780 30 3 1 1 1.3780 30 -2 0 5 1.3427 10 2 0 4 1.3336 5 -3 1 3 1.3336 5 0 2 2 1.3183 12 -4 0 1 1.2872 1 -1 1 5 1.2767 7 3 1 2 1.2713 5 -4 0 2 1.2680 9 4 0 0 1.2646 6 -2 2 1 1.2400 6 2 2 0 1.2400 6 -3 1 4 1.2201 4 0 2 3 1.2163 3 -4 0 3 1.2120 5 4 0 1 1.2062 1 -2 2 2 1.2040 2 2 2 1 1.2019 12 1 1 5 1.1800 8 0 0 6 1.1750 5 3 1 3 1.1541 1 -2 0 6 1.1509 4 2 0 5 1.1440 2 -2 2 3 1.1400 4 2 2 2 1.1370 8 -4 0 4 1.1325 5 4 0 2 1.1254 3 0 2 4 1.1065 3 -3 1 5 1.1034 2 -1 1 6 1.1014 1 |
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