Phase H Bindi L, Nishi M, Tsuchiya J, Irifune T American Mineralogist 99 (2014) 1802-1805 Crystal chemistry of dense hydrous magnesium silicates: The structure of phase H, MgSiH2O4, synthesized at 45 GPa and 1000 C Locality: Synthetic _database_code_amcsd 0020313 CELL PARAMETERS: 4.7330 4.3250 2.8420 90.000 90.000 90.000 SPACE GROUP: Pnnm X-RAY WAVELENGTH: 1.541838 Cell Volume: 58.176 Density (g/cm3): 3.379 MAX. ABS. INTENSITY / VOLUME**2: 10.25077136 RIR: 0.988 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 27.95 100.00 3.1928 1 1 0 4 36.89 4.26 2.4365 1 0 1 4 37.88 80.04 2.3751 0 1 1 4 38.02 11.50 2.3665 2 0 0 2 42.59 66.59 2.1228 1 1 1 8 43.60 40.07 2.0760 2 1 0 4 46.15 1.50 1.9669 1 2 0 4 54.76 33.01 1.6764 2 1 1 8 56.93 68.70 1.6174 1 2 1 8 57.75 25.61 1.5964 2 2 0 4 62.68 12.50 1.4821 3 1 0 4 65.71 16.71 1.4210 0 0 2 2 67.96 26.86 1.3794 3 0 1 4 67.97 10.81 1.3791 1 3 0 4 72.86 10.43 1.2982 1 1 2 8 73.68 2.94 1.2857 0 3 1 4 76.83 4.18 1.2407 1 3 1 8 77.53 2.63 1.2312 2 3 0 4 78.52 2.58 1.2182 2 0 2 4 82.21 4.72 1.1726 2 1 2 8 86.06 8.78 1.1297 2 3 1 8 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.