data_global
_chemical_name_mineral 'Holmquistite'
loop_
_publ_author_name
'Camara F'
'Oberti R'
_journal_name_full 'American Mineralogist'
_journal_volume 90 
_journal_year 2005
_journal_page_first 1167
_journal_page_last 1176
_publ_section_title
;
 The crystal-chemistry of holmquistites: Ferroholmquistite from
 Greenbushes (Western Australia) and
 hints for compositional constraints in B-Li amphiboles
 Sample: Uto, Sweden
;
_database_code_amcsd 0003817
_chemical_formula_sum 'Mg2.32 Fe1.3 Mn.06 Al1.3 Zn.01 Li1.93 Na.1 Si8 O23.87 F.13 H3.74'
_cell_length_a 18.335
_cell_length_b 17.693
_cell_length_c 5.2743
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 1710.989
_exptl_crystal_density_diffrn      3.092
_symmetry_space_group_name_H-M 'P n m a'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2-y,z'
  '-x,1/2+y,-z'
  '1/2-x,1/2+y,1/2+z'
  '1/2+x,1/2-y,1/2-z'
  '1/2+x,y,1/2-z'
  '1/2-x,-y,1/2+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
Mg1   0.12520   0.16000   0.39490   0.77000   0.00600
Fe1   0.12520   0.16000   0.39490   0.20000   0.00600
Mn1   0.12520   0.16000   0.39490   0.03000   0.00600
Al2   0.12530   0.06850  -0.10430   0.65000   0.00300
Fe3+2   0.12530   0.06850  -0.10430   0.34000   0.00300
Fe++2   0.12530   0.06850  -0.10430   0.00500   0.00300
Zn2   0.12530   0.06850  -0.10430   0.00500   0.00300
Mg3   0.12540   0.25000  -0.10500   0.78000   0.00500
Fe3   0.12540   0.25000  -0.10500   0.21000   0.00500
Li3   0.12540   0.25000  -0.10500   0.01000   0.00500
Li4   0.12320  -0.00580   0.39780   0.96000   0.01300
Na4   0.12320  -0.00580   0.39780   0.04000   0.01300
NaA   0.37500   0.25000   0.50000   0.02000 ?
Si1A   0.26970   0.16260   0.06760   1.00000   0.00400
Si1B  -0.01900   0.16310   0.72470   1.00000   0.00400
Si2A   0.27330   0.07670   0.57270   1.00000   0.00400
Si2B  -0.02410   0.07790   0.21760   1.00000   0.00400
O1A   0.18120   0.15850   0.05250   1.00000   0.00600
O1B   0.06940   0.15770   0.73750   1.00000   0.00500
O2A   0.18480   0.07640   0.58780   1.00000   0.00600
O2B   0.06460   0.07560   0.20270   1.00000   0.00500
O-H3A   0.18220   0.25000   0.55550   0.93500   0.00700
F3A   0.18220   0.25000   0.55550   0.06500   0.00700
O-H3B   0.06880   0.25000   0.23500   0.93500   0.00700
F3B   0.06880   0.25000   0.23500   0.06500   0.00700
O4A   0.31170  -0.00390   0.56480   1.00000   0.00800
O4B  -0.06430  -0.00040   0.27040   1.00000   0.00700
O5A   0.30500   0.11600  -0.16670   1.00000   0.00700
O5B  -0.05360   0.11390   0.95140   1.00000   0.00600
O6A   0.29750   0.12910   0.33400   1.00000   0.00600
O6B  -0.04660   0.13440   0.45130   1.00000   0.00800
O7A   0.29460   0.25000   0.04470   1.00000   0.00900
O7B  -0.04410   0.25000   0.75930   1.00000   0.00800
HA   0.23750   0.25000   0.53650   0.93500 ?
HB   0.00940   0.25000   0.23550   0.93500 ?