data_9001027
_publ_section_title
;
 Crystal structures of bobierrite and synthetic Mg3(PO4)2.8H2O
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1229
_journal_page_last               1233
_journal_volume                  71
_journal_year                    1986
_chemical_formula_sum            'Mg3 O16 P2'
_chemical_name_mineral           Baricite
_space_group_IT_number           12
_symmetry_space_group_name_Hall  '-C 2y'
_symmetry_space_group_name_H-M   'C 1 2/m 1'
_cell_angle_alpha                90
_cell_angle_beta                 105.09
_cell_angle_gamma                90
_cell_length_a                   10.034
_cell_length_b                   13.407
_cell_length_c                   4.657
_cell_volume                     604.884
_exptl_crystal_density_diffrn    2.146
_[local]_cod_chemical_formula_sum_orig 'Mg3 P2 O16'
_cod_database_code               9001027
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
1/2+x,1/2+y,z
x,-y,z
1/2+x,1/2-y,z
-x,y,-z
1/2-x,1/2+y,-z
-x,-y,-z
1/2-x,1/2-y,-z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Mg1 0.00000 0.00000 0.00000
Mg2 0.00000 0.39054 0.00000
P 0.31452 0.00000 0.38430
O1 0.15750 0.00000 0.37090
O2 0.39470 0.00000 0.71440
O3 0.34550 0.09560 0.23030
OW1 0.40130 0.38660 0.19160
OW2 0.10100 0.27870 0.28020
