data_global
_chemical_name_mineral 'Tremolite'
loop_
_publ_author_name
'Ballirano P'
'Andreozzi G B'
'Belardi G'
_journal_name_full 'American Mineralogist'
_journal_volume 93 
_journal_year 2008
_journal_page_first 1349
_journal_page_last 1355
_publ_section_title
;
 Crystal chemical and structural characterization of fibrous tremolite from
 Susa Valley, Italy, with comments on potential harmful effects on human health
;
_database_code_amcsd 0004630
_chemical_compound_source 'Condove, Susa Valley, Italy'
_chemical_formula_sum '(Ca1.94 K.01 Na.05) Al.01 Fe.12 Mg4.85 Mn.02 Si8 O23.96 F.03 Cl.01 H1.96'
_cell_length_a 9.84174
_cell_length_b 18.05932
_cell_length_c 5.27876
_cell_angle_alpha 90
_cell_angle_beta 104.732
_cell_angle_gamma 90
_cell_volume 907.378
_exptl_crystal_density_diffrn      2.987
_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
CaM4   0.00000   0.27737   0.50000   0.97000   0.00700
KM4   0.00000   0.27737   0.50000   0.00500   0.00700
NaM4   0.00000   0.27737   0.50000   0.02500   0.00700
AlM1   0.00000   0.08738   0.50000   0.00500   0.00700
FeM1   0.00000   0.08738   0.50000   0.02500   0.00700
MgM1   0.00000   0.08738   0.50000   0.96000   0.00700
MnM1   0.00000   0.08738   0.50000   0.01000   0.00700
MgM2   0.00000   0.17656   0.00000   0.97000   0.00700
FeM2   0.00000   0.17656   0.00000   0.03000   0.00700
MgM3   0.00000   0.00000   0.00000   0.99000   0.00700
FeM3   0.00000   0.00000   0.00000   0.01000   0.00700
Si1   0.28106   0.08436   0.29770   1.00000   0.00500
Si2   0.28751   0.17064   0.80410   1.00000   0.00500
O1   0.11390   0.08679   0.21780   1.00000   0.00800
O2   0.11660   0.17198   0.72360   1.00000   0.00800
O3   0.10850   0.00000   0.71370   0.98000   0.00800
F   0.10850   0.00000   0.71370   0.01500   0.00800
Cl   0.10850   0.00000   0.71370   0.00500   0.00800
O4   0.36570   0.24749   0.78970   1.00000   0.00800
O5   0.34540   0.13364   0.09850   1.00000   0.00800
O6   0.34380   0.11794   0.59500   1.00000   0.00800
O7   0.33870   0.00000   0.28930   1.00000   0.00800
H   0.20600   0.00000   0.77100   0.98000   0.03000