data_global
_chemical_name_mineral 'Hornblende'
loop_
_publ_author_name
'Oberti R'
'Hawthorne F C'
'Ungaretti L'
'Cannillo E'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 33 
_journal_year 1995
_journal_page_first 867
_journal_page_last 878
_publ_section_title
;
 [6]Al disorder in amphiboles from mantle peridotites
 Sample: F4
;
_database_code_amcsd 0005449
_chemical_formula_sum 'Si6.568 Al2.142 Mg3.7 Fe.59 Ti.04 Cr.04 Ca1.88 Na.586 K.336 H2 O24'
_cell_length_a 9.860
_cell_length_b 17.984
_cell_length_c 5.290
_cell_angle_alpha 90
_cell_angle_beta 105.26
_cell_angle_gamma 90
_cell_volume 904.961
_exptl_crystal_density_diffrn      3.145
_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_occupancy
_atom_site_U_iso_or_equiv
SiT1   0.28070   0.08520   0.30220   0.82100   0.00532
AlT1   0.28070   0.08520   0.30220   0.17900   0.00532
SiT2   0.29050   0.17290   0.81220   0.82100   0.00583
AlT2   0.29050   0.17290   0.81220   0.17900   0.00583
MgM1   0.00000   0.08890   0.50000   0.91000   0.00633
FeM1   0.00000   0.08890   0.50000   0.09000   0.00633
TiM2   0.00000   0.17620   0.00000   0.02000   0.00595
CrM2   0.00000   0.17620   0.00000   0.02000   0.00595
AlM2   0.00000   0.17620   0.00000   0.23000   0.00595
FeM2   0.00000   0.17620   0.00000   0.12000   0.00595
MgM2   0.00000   0.17620   0.00000   0.61000   0.00595
AlM3   0.00000   0.00000   0.00000   0.25000   0.00583
MgM3   0.00000   0.00000   0.00000   0.66000   0.00583
FeM3   0.00000   0.00000   0.00000   0.09000   0.00583
FeM4   0.00000   0.27980   0.50000   0.02000   0.00849
CaM4   0.00000   0.27980   0.50000   0.47000   0.00849
NaM4   0.00000   0.27980   0.50000   0.01000   0.00849
FeM4*   0.00000   0.25710   0.50000   0.02000   0.00874
CaM4*   0.00000   0.25710   0.50000   0.47000   0.00874
NaM4*   0.00000   0.25710   0.50000   0.01000   0.00874
NaA   0.00000   0.50000   0.00000   0.11000   0.06219
KA   0.00000   0.50000   0.00000   0.06800   0.06219
NaA(m)   0.02910   0.50000   0.07270   0.10900   0.06079
KA(m)   0.02910   0.50000   0.07270   0.06700   0.06079
NaA(2)   0.00000   0.46750   0.00000   0.10900   0.02102
KA(2)   0.00000   0.46750   0.00000   0.06700   0.02102
H   0.19740   0.00000   0.76760   1.00000   0.05459
O1   0.10730   0.08750   0.21620   1.00000   0.00975
O2   0.11950   0.17320   0.73210   1.00000   0.00811
O-h3   0.10840   0.00000   0.71730   1.00000   0.00975
O4   0.36710   0.25000   0.78840   1.00000   0.01077
O5   0.34960   0.14030   0.11210   1.00000   0.01089
O6   0.34370   0.11630   0.60900   1.00000   0.01216
O7   0.33940   0.00000   0.27530   1.00000   0.01406