data_global
_chemical_name_mineral 'Malayaite'
loop_
_publ_author_name
'Rath S'
'Kunz M'
'Miletich R'
_journal_name_full 'American Mineralogist'
_journal_volume 88 
_journal_year 2003
_journal_page_first 293
_journal_page_last 300
_publ_section_title
;
 Pressure-induced phase transition in malayaite, CaSnOSiO4
 Sample: at P = 4.238 GPa
;
_database_code_amcsd 0002982
_chemical_formula_sum 'Ca Sn Si O5'
_cell_length_a 7.0560
_cell_length_b 8.8436
_cell_length_c 6.5629
_cell_angle_alpha 90
_cell_angle_beta 112.948
_cell_angle_gamma 90
_cell_volume 377.117
_exptl_crystal_density_diffrn      4.700
_symmetry_space_group_name_H-M 'A 1 2/a 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2+y,1/2+z'
  '1/2+x,-y,z'
  '1/2+x,1/2-y,1/2+z'
  '1/2-x,y,-z'
  '1/2-x,1/2+y,1/2-z'
  '-x,-y,-z'
  '-x,1/2-y,1/2-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Ca   0.25000   0.66070   0.50000   0.02600
Sn   0.50000   0.50000   0.00000   0.00970
Si   0.75000   0.68340   0.50000   0.01050
O1   0.75000   0.59100   0.00000   0.01000
O2   0.91770   0.56800   0.67200   0.01000
O3   0.37000   0.71100   0.88700   0.01000