# CIF file 
data_findsym-output
_audit_creation_method FINDSYM

_chemical_name_mineral 'Forsterite'
_chemical_formula_sum 'Mg2 O4 Si'

loop_
_publ_author_name
 'R. M. Hazen'
_journal_name_full_name
;
 American Mineralogist
;
_journal_volume 61
_journal_year 1976
_journal_page_first 1280
_journal_page_last 1293
_publ_Section_title
;
 Effects of temperature and pressure on the crystal structure of forsterite
;

_aflow_title 'Forsterite (Mg$_{2}$SiO$_{4}$, $S1_{2}$) Structure'
_aflow_proto 'A2B4C_oP28_62_ac_2cd_c'
_aflow_params 'a,b/a,c/a,x_{2},z_{2},x_{3},z_{3},x_{4},z_{4},x_{5},z_{5},x_{6},y_{6},z_{6}'
_aflow_params_values '10.193,0.586382811734,0.466202295693,0.2774,-0.0085,0.0913,0.7657,0.4474,0.2215,0.094,0.4262,0.1628,0.0331,0.2777'
_aflow_Strukturbericht '$S1_{2}$'
_aflow_Pearson 'oP28'

_symmetry_space_group_name_H-M "P 21/n 21/m 21/a"
_symmetry_Int_Tables_number 62
 
_cell_length_a    10.19300
_cell_length_b    5.97700
_cell_length_c    4.75200
_cell_angle_alpha 90.00000
_cell_angle_beta  90.00000
_cell_angle_gamma 90.00000
 
loop_
_space_group_symop_id
_space_group_symop_operation_xyz
1 x,y,z
2 x+1/2,-y+1/2,-z+1/2
3 -x,y+1/2,-z
4 -x+1/2,-y,z+1/2
5 -x,-y,-z
6 -x+1/2,y+1/2,z+1/2
7 x,-y+1/2,z
8 x+1/2,y,-z+1/2
 
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_symmetry_multiplicity
_atom_site_Wyckoff_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Mg1 Mg   4 a 0.00000 0.00000 0.00000 1.00000
Mg2 Mg   4 c 0.27740 0.25000 -0.00850 1.00000
O1  O    4 c 0.09130 0.25000 0.76570 1.00000
O2  O    4 c 0.44740 0.25000 0.22150 1.00000
Si1 Si   4 c 0.09400 0.25000 0.42620 1.00000
O3  O    8 d 0.16280 0.03310 0.27770 1.00000
