Pertoldite Yamanaka T, Ogata K Journal of Applied Crystallography 24 (1991) 111-118 Structure refinement of GeO2 polymorphs at high pressures and temperatures by energy-dispersive spectra of powder diffraction Note: P = 1.69 GPa T = 293 K Locality: synthetic _database_code_amcsd 0019057 CELL PARAMETERS: 4.9113 4.9113 5.6099 90.000 90.000 120.000 SPACE GROUP: P3_221 X-RAY WAVELENGTH: 1.541838 Cell Volume: 117.187 Density (g/cm3): 4.448 MAX. ABS. INTENSITY / VOLUME**2: 117.3841416 RIR: 8.594 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 20.89 18.75 4.2533 1 0 0 6 26.29 78.71 3.3893 0 1 1 6 26.29 21.29 3.3893 1 0 1 6 36.59 10.30 2.4557 1 1 0 3 38.44 20.74 2.3416 1 0 2 6 40.08 13.26 2.2496 1 1 1 6 42.51 17.47 2.1267 2 0 0 6 45.62 1.50 1.9886 0 2 1 6 48.69 4.81 1.8700 0 0 3 2 49.32 10.67 1.8476 1 1 2 6 53.53 1.77 1.7118 0 1 3 6 54.12 2.56 1.6946 0 2 2 6 54.12 3.01 1.6946 2 0 2 6 57.31 2.15 1.6076 2 1 0 6 59.85 3.28 1.5454 1 2 1 6 59.85 11.04 1.5454 2 1 1 6 62.42 4.06 1.4877 1 1 3 6 66.59 3.11 1.4043 0 2 3 6 66.59 5.50 1.4043 2 0 3 6 67.11 9.80 1.3948 1 2 2 6 68.23 7.29 1.3746 0 3 1 6 70.73 2.51 1.3319 1 0 4 6 70.73 3.06 1.3319 0 1 4 6 75.07 4.35 1.2653 3 0 2 6 78.45 2.32 1.2190 2 1 3 6 78.55 2.38 1.2179 1 1 4 6 81.61 1.43 1.1797 3 1 0 6 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.