data_global
_chemical_name_mineral 'Iangreyite'
loop_
_publ_author_name
'Mills S J'
'Kampf A R'
'Sejkora J'
'Adams P M'
'Birch W D'
'Plasil J'
_journal_name_full 'Mineralogical Magazine'
_journal_volume 75 
_journal_year 2011
_journal_page_first 327
_journal_page_last 336
_publ_section_title
;
 Iangreyite: a new secondary phosphate mineral closely related to perhamite
;
_database_code_amcsd 0018377
_chemical_compound_source 'Silver Coin mine, Nevada, USA'
_chemical_formula_sum 'Ca2 Al7 P4 O39 H33'
_cell_length_a 6.988
_cell_length_b 6.988
_cell_length_c 16.707
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 706.537
_exptl_crystal_density_diffrn      2.468
_symmetry_space_group_name_H-M 'P 3 2 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'y,x,-z'
  '-y,x-y,z'
  '-x,-x+y,-z'
  '-x+y,-x,z'
  'x-y,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Ca1   0.00000   0.00000   0.00000   1.00000
Ca2   0.66667   0.33333   0.31600   0.50000
Al1   0.16600   0.33333   0.83500   1.00000
Al2   0.00000   0.00000   0.50000   1.00000
P1   0.66667   0.33333   0.02000   1.00000
P2   0.00000   0.00000   0.29500   1.00000
O1   0.42900   0.21400   0.05200   1.00000
O2   0.24000   0.12000   0.26800   1.00000
O3   0.00000   0.00000   0.38900   1.00000
O-H1   0.33333   0.66667   0.07000   1.00000
O-H2   0.25300   0.00000   0.50000   1.00000
O-H3   0.12600   0.25200   0.13100   1.00000
O-H4   0.91400   0.45700   0.19200   1.00000
Wat1   0.33333   0.66667   0.25000   1.00000
Wat2   0.03000   0.51500   0.40200   1.00000