data_global
_chemical_name_mineral 'Magnesiotaramite'
loop_
_publ_author_name
'Hawthorne F C'
'Oberti R'
'Sardone N'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 34 
_journal_year 1996
_journal_page_first 577
_journal_page_last 593
_publ_section_title
;
 Sodium at the A site in clinoamphiboles: the effects of composition
 on patterns of order
 Sample: A6 - Q99 N.3
;
_database_code_amcsd 0005491
_chemical_formula_sum 'Si6.08 Al3.12 Mg2.34 Fe1.48 Ti.04 Ca1.2 Na2.74 H2 O24'
_cell_length_a 9.790
_cell_length_b 17.899
_cell_length_c 5.319
_cell_angle_alpha 90
_cell_angle_beta 104.9
_cell_angle_gamma 90
_cell_volume 900.715
_exptl_crystal_density_diffrn      3.294
_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   0.28090   0.08690   0.30210   0.76000   0.00557
AlT1   0.28090   0.08690   0.30210   0.24000   0.00557
SiT2   0.29210   0.17400   0.81570   0.76000   0.00545
AlT2   0.29210   0.17400   0.81570   0.24000   0.00545
MgM1   0.00000   0.09010   0.50000   0.78000   0.00697
FeM1   0.00000   0.09010   0.50000   0.22000   0.00697
AlM2   0.00000   0.17820   0.00000   0.60000   0.00684
TiM2   0.00000   0.17820   0.00000   0.02000   0.00684
FeM2   0.00000   0.17820   0.00000   0.28000   0.00684
MgM2   0.00000   0.17820   0.00000   0.10000   0.00684
MgM3   0.00000   0.00000   0.00000   0.58000   0.00621
FeM3   0.00000   0.00000   0.00000   0.42000   0.00621
FeM4   0.00000   0.28060   0.50000   0.03000   0.00975
CaM4   0.00000   0.28060   0.50000   0.60000   0.00975
NaM4   0.00000   0.28060   0.50000   0.37000   0.00975
NaAm   0.03690   0.50000   0.08960   0.24000   0.03698
NaA2   0.00000   0.47330   0.00000   0.76000   0.03635
H   0.19600   0.00000   0.76250   1.00000   0.02166
O1   0.10470   0.09200   0.21160   1.00000   0.00925
O2   0.11960   0.17430   0.74260   1.00000   0.00849
O-h3   0.10960   0.00000   0.70950   1.00000   0.00912
O4   0.36870   0.25200   0.79450   1.00000   0.00925
O5   0.35350   0.13990   0.10890   1.00000   0.01115
O6   0.34250   0.11780   0.60940   1.00000   0.01115
O7   0.33810   0.00000   0.27630   1.00000   0.01368