data_9003043
_publ_section_title
;
 Bulk modulus and high-pressure crystal structures of minium, Pb3O4,
 determined by X-ray powder diffraction
 Sample: Phase III of Pb3O4 at 13.3 GPa
;
_journal_name_full               'American Mineralogist'
_journal_page_first              996
_journal_page_last               1002
_journal_volume                  88
_journal_year                    2003
_chemical_formula_structural     Pb3O4
_chemical_formula_sum            'O4 Pb3'
_chemical_name_mineral           Minium
_space_group_IT_number           55
_symmetry_space_group_name_Hall  '-P 2 2ab'
_symmetry_space_group_name_H-M   'P b a m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   9.3812
_cell_length_b                   6.4610
_cell_length_c                   3.3168
_cell_volume                     201.038
_exptl_crystal_density_diffrn    11.326
_[local]_cod_chemical_formula_sum_orig 'Pb3 O4'
_cod_database_code               9003043
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
1/2+x,1/2-y,z
1/2-x,1/2+y,-z
1/2-x,1/2+y,z
1/2+x,1/2-y,-z
x,y,-z
-x,-y,z
-x,-y,-z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Pb1 0.67564 0.94970 0.50000 0.01400
Pb2 0.50000 0.50000 0.00000 0.01700
O1 0.31320 0.30140 0.00000 0.04200
O2 0.58410 0.31080 0.50000 0.04200
