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: F8
;
_database_code_amcsd 0005452
_chemical_formula_sum 'Si6.312 Al2.318 Mg3.88 Fe.53 Ti.04 Cr.04 Ca1.84 Na.7 K.04 H2 O24'
_cell_length_a 9.861
_cell_length_b 17.959
_cell_length_c 5.289
_cell_angle_alpha 90
_cell_angle_beta 105.32
_cell_angle_gamma 90
_cell_volume 903.365
_exptl_crystal_density_diffrn      3.107
_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   0.30230   0.78900   0.00659
AlT1   0.28070   0.08520   0.30230   0.21100   0.00659
SiT2   0.29080   0.17300   0.81270   0.78900   0.00697
AlT2   0.29080   0.17300   0.81270   0.21100   0.00697
MgM1   0.00000   0.08900   0.50000   0.92000   0.00798
FeM1   0.00000   0.08900   0.50000   0.06000   0.00798
TiM2   0.00000   0.17620   0.00000   0.02000   0.00722
CrM2   0.00000   0.17620   0.00000   0.02000   0.00722
AlM2   0.00000   0.17620   0.00000   0.21000   0.00722
FeM2   0.00000   0.17620   0.00000   0.11000   0.00722
MgM2   0.00000   0.17620   0.00000   0.64000   0.00722
AlM3   0.00000   0.00000   0.00000   0.21000   0.00697
MgM3   0.00000   0.00000   0.00000   0.72000   0.00697
FeM3   0.00000   0.00000   0.00000   0.07000   0.00697
FeM4   0.00000   0.27990   0.50000   0.03000   0.00988
MgM4   0.00000   0.27990   0.50000   0.01000   0.00988
CaM4   0.00000   0.27990   0.50000   0.46000   0.00988
FeM4*   0.00000   0.25340   0.50000   0.03000   0.00925
MgM4*   0.00000   0.25340   0.50000   0.01000   0.00925
CaM4*   0.00000   0.25340   0.50000   0.46000   0.00925
NaA   0.00000   0.50000   0.00000   0.14000   0.04610
KA   0.00000   0.50000   0.00000   0.00800   0.04610
NaA(m)   0.01390   0.50000   0.05860   0.14000   0.04078
KA(m)   0.01390   0.50000   0.05860   0.00800   0.04078
NaA(2)   0.00000   0.46640   0.00000   0.14000   0.02204
KA(2)   0.00000   0.46640   0.00000   0.00800   0.02204
H   0.20300   0.00000   0.72770   1.00000   0.07903
O1   0.10680   0.08730   0.21560   1.00000   0.01127
O2   0.11960   0.17340   0.73240   1.00000   0.00937
O-h3   0.10820   0.00000   0.71820   1.00000   0.01089
O4   0.36700   0.25000   0.78700   1.00000   0.01203
O5   0.34950   0.14070   0.11360   1.00000   0.01216
O6   0.34370   0.11600   0.61120   1.00000   0.01381
O7   0.33980   0.00000   0.27300   1.00000   0.01545