Larixite: Crystal Structures for X-ray Absorption Spectroscopy About

Search the American Mineralogist Crystal Structures
(example: hem*)
(example: O, Fe, Si)

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CIF Text:


data_global
_chemical_name_mineral 'Sudoite'
loop_
_publ_author_name
'Eggleton R A'
'Bailey S W'
_journal_name_full 'American Mineralogist'
_journal_volume 52
_journal_year 1967
_journal_page_first 673
_journal_page_last 689
_publ_section_title
;
 Structural aspects of dioctahedral chlorite
;
_database_code_amcsd 155
_chemical_formula_sum 'Si3.32 Al3.37 Mg2.31 O18 H8'
_cell_length_a 5.237
_cell_length_b 9.07
_cell_length_c 14.285
_cell_angle_alpha 90.0
_cell_angle_beta 97.03
_cell_angle_gamma 90.0
_cell_volume 673.431
_exptl_crystal_density_diffrn  2.645
_symmetry_space_group_name_H-M 'C 1 2/m 1'
loop_
_space_group_symop_operation_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
_atom_site_occupancy
Si   0.2312  0.1667  0.1909  0.83
Al   0.2312  0.1667  0.1909  0.17
Al2   0.0  0.333333  0.0  1.0
Mg3   0.0  0.1667  0.5  0.77
Al3   0.0  0.1667  0.5  0.23
Mg4   0.0  0.5  0.5  0.77
Al4   0.0  0.5  0.5  0.23
O1   0.19  0.1667  0.072  1.0
O2   0.1943  0.0  0.2368  1.0
O3   0.5066  0.2335  0.2332  1.0
O-H1   0.19  0.5  0.072  1.0
O-H2   0.1421  0.0  0.4243  1.0
O-H3   0.1421  0.333333  0.4243  1.0