data_global
_chemical_name_mineral 'Boggsite'
loop_
_publ_author_name
'Arletti R'
'Quartieri S'
'Vezzalini G'
_journal_name_full 'American Mineralogist'
_journal_volume 95 
_journal_year 2010
_journal_page_first 1247
_journal_page_last 1256
_publ_section_title
;
 Elastic behavior of zeolite boggsite in silicon oil and aqueous medium:
 A case of high-pressure-induced over hydration,
 Sample: P = 0.0 GPa on release of pressure
 Note: assignment of site chemistry does not match chemical analysis
;
_database_code_amcsd 0017095
_chemical_formula_sum 'Si24 O67.52 Ca3.64'
_cell_length_a 20.326
_cell_length_b 23.883
_cell_length_c 12.836
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 6231.183
_exptl_crystal_density_diffrn      2.026
_symmetry_space_group_name_H-M 'I m m a'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,1/2+z'
  'x,1/2-y,z'
  '1/2+x,-y,1/2+z'
  '-x,1/2+y,-z'
  '1/2-x,+y,1/2-z'
  '-x,y,z'
  '1/2-x,1/2+y,1/2+z'
  'x,-y,-z'
  '1/2+x,1/2-y,1/2-z'
  'x,1/2+y,-z'
  '1/2+x,+y,1/2-z'
  '-x,1/2-y,z'
  '1/2-x,-y,1/2+z'
  '-x,-y,-z'
  '1/2-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_occupancy
_atom_site_U_iso_or_equiv
Si1   0.18890   0.18530   0.66900   1.00000   0.01500
Si2   0.18520   0.02090   0.32400   1.00000   0.01500
Si3   0.07740   0.18540   0.83400   1.00000   0.01500
Si4   0.07800   0.02360   0.16700   1.00000   0.01500
Si5   0.22370   0.07960   0.53200   1.00000   0.01500
Si6   0.12110   0.08260   0.96000   1.00000   0.01500
O1   0.18500   0.25000   0.62800   1.00000   0.01200
O2   0.11700   0.17300   0.72700   1.00000   0.01200
O3   0.20200   0.14100   0.57600   1.00000   0.01200
O4   0.18900   0.07100   0.41500   1.00000   0.01200
O5   0.11400   0.04400   0.27500   1.00000   0.01200
O6   0.08400   0.25000   0.86700   1.00000   0.01200
O7   0.00000   0.17300   0.80100   1.00000   0.01200
O8   0.00000   0.02800   0.19600   1.00000   0.01200
O9   0.19100   0.04040   0.61800   1.00000   0.01200
O10   0.09800   0.14500   0.93100   1.00000   0.01200
O11   0.09200   0.06780   0.07400   1.00000   0.01200
O12   0.19880   0.08120   0.96800   1.00000   0.01200
O13   0.10300   0.03750   0.87400   1.00000   0.01200
O14   0.25000   0.18500   0.75000   1.00000   0.01200
O15   0.25000  -0.02660   0.75000   1.00000   0.01200
CaX1   0.00000   0.18000   0.14400   0.53000   0.17400
OX2   0.18600   0.16400   0.22100   1.15000   0.17400
OX3   0.19800   0.25000   0.07700   0.59000   0.17400
OX4   0.13000   0.17700   0.49500   0.53000   0.17400
OX5   0.00000   0.25000   0.52000   0.96000   0.17400
OX6   0.00000  -0.04400   0.40900   1.11000   0.17400
CaX7   0.07900   0.14200   0.37900   0.44000   0.17400
OX8   0.05000   0.14100   0.57700   0.71000   0.17400
CaX9   0.06400   0.25000   0.29400   0.41000   0.17400
OX10   0.10700   0.25000   0.07500   0.91000   0.17400
OX11   0.17900   0.25000   0.35100   0.96000   0.17400
OX12   0.21800   0.25000   0.15700   0.44000   0.17400
OX13   0.00000   0.07900   0.40700   0.90000   0.17400