data_global
_chemical_name_mineral 'Brewsterite-Sr'
loop_
_publ_author_name
'Alberti A'
'Sacerdoti M'
'Quartieri S'
'Vezzalini G'
_journal_name_full 'Physics and Chemistry of Minerals'
_journal_volume 26 
_journal_year 1999
_journal_page_first 181
_journal_page_last 186
_publ_section_title
;
 Heating-induced phase transformation in zeolite brewsterite:
 new 4- and 5-coordinated (Si,Al) sites
 Sample: BR280R
;
_database_code_amcsd 0008168
_chemical_formula_sum 'Sr.517 Si2.99 Al1.01 O8.79 H1.58'
_cell_length_a 6.676
_cell_length_b 16.547
_cell_length_c 7.543
_cell_angle_alpha 90
_cell_angle_beta 94.41
_cell_angle_gamma 90
_cell_volume 830.792
_exptl_crystal_density_diffrn      2.389
_symmetry_space_group_name_H-M 'P 1 21/m 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2-y,z'
  '-x,1/2+y,-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Sr1   0.57000   0.25000   0.06600   0.33800   0.12700
Sr2   0.06700   0.25000   0.56800   0.23600   0.09800
Sr3   0.83300   0.13200   0.08300   0.11800   0.27000
Sr4   0.05500   0.25000   0.39800   0.16000   0.29000
Sr5   0.71600   0.25000  -0.05400   0.06400   0.10000
SiT1   0.31800   0.08560   0.82900   0.69000   0.05500
AlT11   0.23100   0.16000   0.84700   0.31000   0.05500
SiT2   0.40700   0.06500   0.19500   0.80000   0.07400
AlT21   0.22700   0.37500   0.20700   0.20000   0.07400
SiT3   0.56700   0.16020   0.54000   0.75000   0.07400
AlT3   0.56700   0.16020   0.54000   0.25000   0.07400
SiT4   0.91200   0.04270   0.65200   0.75000   0.06600
AlT4   0.91200   0.04270   0.65200   0.25000   0.06600
O1   0.34700   0.11800   0.01400   1.00000   0.12000
O2   0.47300   0.13900   0.34100   1.00000   0.15000
O3   0.76900   0.11500   0.59100   1.00000   0.17000
O4   0.41400   0.14500   0.69700   1.00000   0.13000
O5   0.07800   0.08500   0.77300   1.00000   0.15000
O6   0.19900   0.01900   0.23600   1.00000   0.13000
O7   0.39600   0.99600   0.81100   0.80000   0.09000
Wat71   0.10300   0.25000   0.78500   0.91000   0.17000
Wat72   0.23100   0.25000   0.18600   0.67000   0.06000
O73  -0.03200   0.15400   0.21900   0.20000   0.16000
O8   0.00000   0.00000   0.50000   1.00000   0.09000
O9   0.63300   0.25000   0.52500   1.00000   0.11000