data_global
_chemical_name_mineral 'Kaersutite'
loop_
_publ_author_name
'Comopdi P'
'Boffa Ballaran T'
'Zanazzi P F'
'Capalbo C'
'Zanetti A'
'Nazzareni S'
_journal_name_full 'American Mineralogist'
_journal_volume 95 
_journal_year 2010
_journal_page_first 1042
_journal_page_last 1051
_publ_section_title
;
 The effect of oxo-component on the high-pressure behavior of amphiboles
 Sample: FR12 P = 3.74 GPa
;
_database_code_amcsd 0005063
_chemical_compound_source 'an alkaline basalt of the Massif Central, France'
_chemical_formula_sum 'Si8 Fe1.72 Mg3.5 Ca1.78 Na1.06 K.08 O24 H2'
_cell_length_a 9.691
_cell_length_b 17.831
_cell_length_c 5.247
_cell_angle_alpha 90
_cell_angle_beta 105.92
_cell_angle_gamma 90
_cell_volume 871.908
_exptl_crystal_density_diffrn      3.392
_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   0.28700   0.08517   0.30690   1.00000   0.01100
SiT2   0.29220   0.17285   0.81190   1.00000   0.00840
FeM1   0.00000   0.07991   0.50000   0.50000   0.01400
MgM1   0.00000   0.07991   0.50000   0.50000   0.01400
MgM2   0.00000   0.17607   0.00000   0.80000   0.00880
FeM2   0.00000   0.17607   0.00000   0.20000   0.00880
MgM3   0.00000   0.00000   0.00000   0.68000   0.01030
FeM3   0.00000   0.00000   0.00000   0.32000   0.01030
CaM4   0.00000   0.27810   0.50000   0.89000   0.01220
MgM4*   0.00000   0.26100   0.50000   0.11000   0.01400
NaAm   0.03600   0.50000   0.06100   0.53000   0.02700
KA2   0.00000   0.47500   0.00000   0.04000   0.02700
O1   0.11040   0.08560   0.22250   1.00000   0.01290
O2   0.11810   0.16960   0.72620   1.00000   0.01270
O-H3   0.11100   0.00000   0.71910   1.00000   0.01510
O4   0.36290   0.25250   0.78430   1.00000   0.01510
O5   0.35340   0.14200   0.11620   1.00000   0.01590
O6   0.35130   0.11690   0.61650   1.00000   0.01500
O7   0.34950   0.00000   0.28190   1.00000   0.01800