data_global
_chemical_name_mineral 'Matsubaraite'
loop_
_publ_author_name
'Miyajima H'
'Miyawaki R'
'Ito K'
_journal_name_full 'European Journal of Mineralogy'
_journal_volume 14 
_journal_year 2002
_journal_page_first 1119
_journal_page_last 1128
_publ_section_title
;
 Matsubaraite, Sr4Ti5(Si2O7)2O8, a new mineral, the Sr-Ti analogue
 of perrierite in jadeitite from the Itoigawa-Ohmi district,
 Niigata Prefecture, Japan
;
_database_code_amcsd 0006952
_chemical_compound_source 'Itoigawa-Ohmi district, Niigata Prefecture, Japan'
_chemical_formula_sum 'Sr4 Ti5 Si4 O22'
_cell_length_a 13.850
_cell_length_b 5.631
_cell_length_c 11.8920
_cell_angle_alpha 90
_cell_angle_beta 114.143
_cell_angle_gamma 90
_cell_volume 846.323
_exptl_crystal_density_diffrn      4.137
_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_U_iso_or_equiv
Sr1   0.76487   0.00000   0.73287   0.00758
Sr2   0.54607   0.50000   0.73841   0.00788
Ti1   0.00000   0.50000   0.50000   0.00488
Ti2   0.50000   0.74369   0.00000   0.00573
Ti3   0.27126   0.00000   0.00074   0.00616
Si1   0.40654   0.00000   0.73070   0.00450
Si2   0.84194   0.00000   0.45339   0.00520
O1   0.06287   0.26520   0.18240   0.00690
O2   0.29210   0.24910   0.11850   0.00640
O3   0.39456   0.26010   0.41890   0.00830
O4   0.09370   0.00000   0.99980   0.00760
O5   0.40460   0.00000  -0.00070   0.00760
O6   0.47090   0.00000   0.64420   0.00870
O7   0.27910   0.00000   0.65630   0.01000
O8   0.14780   0.00000   0.41090   0.01030
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Sr1 0.00811 0.00870 0.00640 0.00000 0.00344 0.00000
Sr2 0.00790 0.01000 0.00602 0.00000 0.00315 0.00000
Ti1 0.00690 0.00540 0.00270 0.00000 0.00240 0.00000
Ti2 0.00910 0.00450 0.00320 0.00000 0.00210 0.00000
Ti3 0.00830 0.00480 0.00520 0.00000 0.00260 0.00000
Si1 0.00580 0.00610 0.00190 0.00000 0.00200 0.00000
Si2 0.00590 0.00560 0.00390 0.00000 0.00180 0.00000
O1 0.00980 0.00660 0.00410 -0.00100 0.00250 0.00080
O2 0.01040 0.00550 0.00340 0.00000 0.00290 -0.00020
O3 0.00950 0.00770 0.00770 0.00170 0.00330 0.00040
O4 0.00670 0.00540 0.01140 0.00000 0.00440 0.00000
O5 0.00620 0.00750 0.00980 0.00000 0.00380 0.00000
O6 0.01010 0.01170 0.00500 0.00000 0.00380 0.00000
O7 0.00650 0.01400 0.00690 0.00000 0.00000 0.00000
O8 0.01270 0.01310 0.00580 0.00000 0.00440 0.00000