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: F10
;
_database_code_amcsd 0005454
_chemical_formula_sum 'Si6.176 Al2.574 Mg3.78 Fe.59 Ti.04 Cr.02 Ca1.82 Na.892 K.01 H2 O24'
_cell_length_a 9.871
_cell_length_b 17.962
_cell_length_c 5.279
_cell_angle_alpha 90
_cell_angle_beta 105.22
_cell_angle_gamma 90
_cell_volume 903.152
_exptl_crystal_density_diffrn      3.128
_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   0.30280   0.77200   0.00507
AlT1   0.28070   0.08520   0.30280   0.22800   0.00507
SiT2   0.29080   0.17310   0.81300   0.77200   0.00557
AlT2   0.29080   0.17310   0.81300   0.22800   0.00557
MgM1   0.00000   0.08930   0.50000   0.91000   0.00608
FeM1   0.00000   0.08930   0.50000   0.09000   0.00608
TiM2   0.00000   0.17620   0.00000   0.02000   0.00583
CrM2   0.00000   0.17620   0.00000   0.01000   0.00583
AlM2   0.00000   0.17620   0.00000   0.24000   0.00583
FeM2   0.00000   0.17620   0.00000   0.09000   0.00583
MgM2   0.00000   0.17620   0.00000   0.64000   0.00583
AlM3   0.00000   0.00000   0.00000   0.27000   0.00570
MgM3   0.00000   0.00000   0.00000   0.64000   0.00570
FeM3   0.00000   0.00000   0.00000   0.09000   0.00570
FeM4   0.00000   0.28000   0.50000   0.04000   0.00773
MgM4   0.00000   0.28000   0.50000   0.01000   0.00773
CaM4   0.00000   0.28000   0.50000   0.45000   0.00773
FeM4*   0.00000   0.25870   0.50000   0.03000   0.01191
MgM4*   0.00000   0.25870   0.50000   0.01000   0.01191
CaM4*   0.00000   0.25870   0.50000   0.46000   0.01191
NaA   0.00000   0.50000   0.00000   0.17800   0.06510
KA   0.00000   0.50000   0.00000   0.00200   0.06510
NaA(m)   0.02570   0.50000   0.07680   0.17900   0.04091
KA(m)   0.02570   0.50000   0.07680   0.00200   0.04091
NaA(2)   0.00000   0.46940   0.00000   0.17800   0.02419
KA(2)   0.00000   0.46940   0.00000   0.00200   0.02419
H   0.18530   0.00000   0.76060   1.00000   0.01001
O1   0.10670   0.08710   0.21560   1.00000   0.01051
O2   0.11980   0.17350   0.73280   1.00000   0.00811
O-h3   0.10770   0.00000   0.71880   1.00000   0.01001
O4   0.36730   0.25010   0.78680   1.00000   0.01089
O5   0.35040   0.14140   0.11410   1.00000   0.01077
O6   0.34360   0.11510   0.61360   1.00000   0.01254
O7   0.34110   0.00000   0.26960   1.00000   0.01267