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 = 3.55 GPa T = 293 K Locality: synthetic _database_code_amcsd 0019058 4.8546 4.8546 5.5943 90 90 120 *P3_221 0 0 .66666666666 atom x y z Biso Ge .4490 0 0 .8 O .3909 .3102 .0832 1.5