data_global
_chemical_name_mineral 'Arfvedsonite'
loop_
_publ_author_name
'Hawthorne F C'
'Ungaretti L'
'Oberti R'
'Bottazzi P'
'Czamanske G K'
_journal_name_full 'American Mineralogist'
_journal_volume 78 
_journal_year 1993
_journal_page_first 733
_journal_page_last 745
_publ_section_title
;
 Li: an important component in igneous alkali amphiboles
 Sample: A(13)
;
_database_code_amcsd 0001598
_chemical_formula_sum 'O23.7 F.3 Si7.928 Al.112 Mg.04 Fe4.48 Ti.06 Zn.02 Li.22 Mn.14 Na2.231 Ca.05 K.521 H1.7'
_cell_length_a 9.986
_cell_length_b 18.042
_cell_length_c 5.314
_cell_angle_alpha 90
_cell_angle_beta 103.92
_cell_angle_gamma 90
_cell_volume 929.293
_exptl_crystal_density_diffrn      3.397
_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
O1   0.11010   0.09130   0.20770   1.00000   0.00988
O2   0.12020   0.17260   0.73320   1.00000   0.01064
O3   0.10820   0.00000   0.70810   0.85000   0.01254
F   0.10820   0.00000   0.70810   0.15000   0.01254
O4   0.36400   0.24750   0.79920   1.00000   0.01292
O5   0.34490   0.12680   0.08040   1.00000   0.01089
O6   0.33760   0.11830   0.58140   1.00000   0.01165
O7   0.32760   0.00000   0.29720   1.00000   0.01305
SiT1   0.27500   0.08600   0.29090   0.99100   0.00697
AlT1   0.27500   0.08600   0.29090   0.00900   0.00697
SiT2   0.28670   0.17080   0.79980   0.99100   0.00697
AlT2   0.28670   0.17080   0.79980   0.00900   0.00697
MgM1   0.00000   0.09090   0.50000   0.02000   0.00925
Fe2+M1   0.00000   0.09090   0.50000   0.98000   0.00925
Fe2+M2   0.00000   0.18390   0.00000   0.34000   0.00747
Fe3+M2   0.00000   0.18390   0.00000   0.60000   0.00747
TiM2   0.00000   0.18390   0.00000   0.03000   0.00747
ZnM2   0.00000   0.18390   0.00000   0.01000   0.00747
AlM2   0.00000   0.18390   0.00000   0.02000   0.00747
LiM3   0.00000   0.00000   0.00000   0.22000   0.00861
Fe2+M3   0.00000   0.00000   0.00000   0.64000   0.00861
MnM3   0.00000   0.00000   0.00000   0.14000   0.00861
NaM4   0.00000   0.27780   0.50000   0.97500   0.01722
CaM4   0.00000   0.27780   0.50000   0.02500   0.01722
KA   0.00000   0.50000   0.00000   0.37700   0.04040
NaA   0.00000   0.50000   0.00000   0.20300   0.04040
KAm   0.03860   0.50000   0.09370   0.05900   0.04104
NaAm   0.03860   0.50000   0.09370   0.03200   0.04104
KA2   0.00000   0.47000   0.00000   0.01300   0.03800
NaA2   0.00000   0.47000   0.00000   0.00700   0.03800
H   0.18700   0.00000   0.74800   0.85000   0.01039