Ringwoodite Baur W H American Mineralogist 57 (1972) 709-731 Computer-simulated crystal structures of observed and hypothetical Mg2SiO4 polymorphs of low and high density normal Locality: hypothetical _database_code_amcsd 0000278 CELL PARAMETERS: 8.1200 8.1200 8.1200 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 535.387 Density (g/cm3): 3.490 MAX. ABS. INTENSITY / VOLUME**2: 22.77683190 RIR: 2.125 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 31.15 31.17 2.8709 2 2 0 12 36.71 100.00 2.4483 3 1 1 24 38.40 1.79 2.3440 2 2 2 8 44.64 40.70 2.0300 4 0 0 6 48.89 2.99 1.8629 3 3 1 24 55.44 9.59 1.6575 4 2 2 24 59.12 10.87 1.5627 3 3 3 8 59.12 12.69 1.5627 5 1 1 24 64.97 56.76 1.4354 4 4 0 12 73.81 3.63 1.2839 6 2 0 24 77.01 8.58 1.2383 5 3 3 24 82.26 3.83 1.1720 4 4 4 8 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.