data_global
_chemical_name_mineral 'Franklinfurnaceite'
loop_
_publ_author_name
'Peacor D R'
'Rouse R C'
'Bailey S W'
_journal_name_full 'American Mineralogist'
_journal_volume 73 
_journal_year 1988
_journal_page_first 876
_journal_page_last 887
_publ_section_title
;
 Crystal structure of franklinfurnaceite: A tri-dioctahedral zincosilicate
 intermediate between chlorite and mica
;
_database_code_amcsd 0001192
_chemical_formula_sum 'Ca2 Mn3.05 Mg.65 Zn2.3 (Fe.75 Al.25) Si2 O18 H8'
_cell_length_a 5.483
_cell_length_b 9.39
_cell_length_c 14.51
_cell_angle_alpha 90
_cell_angle_beta 97.04
_cell_angle_gamma 90
_cell_volume 741.421
_exptl_crystal_density_diffrn      3.650
_symmetry_space_group_name_H-M 'C 1 2 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'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Ca   0.44620   0.00870   0.33090   1.00000
Mn1   0.00000   0.00000   0.00000   0.55000
Mg1   0.00000   0.00000   0.00000   0.30000
Zn1   0.00000   0.00000   0.00000   0.15000
Mn2   0.00000   0.32300   0.00000   1.00000
Mn3   0.00000   0.67070   0.00000   0.95000
Mg3   0.00000   0.67070   0.00000   0.05000
Fe4   0.00000   0.17570   0.50000   0.75000
Al4   0.00000   0.17570   0.50000   0.25000
Mn5   0.00000   0.84120   0.50000   0.55000
Mg5   0.00000   0.84120   0.50000   0.30000
Zn5   0.00000   0.84120   0.50000   0.15000
Zn   0.90410   0.17420   0.19930   1.00000
Si   0.90660   0.84040   0.20430   1.00000
O1   0.37260   0.33810   0.09070   1.00000
O2   0.36170   0.67790   0.06610   1.00000
O3   0.13820   0.33090   0.24400   1.00000
O4   0.08200   0.70540   0.24460   1.00000
O5   0.04390  -0.01100   0.24420   1.00000
O-H1   0.27640   0.18610   0.41840   1.00000
O-H2   0.30210   0.81990   0.41900   1.00000
O-H3   0.37110  -0.01900   0.07010   1.00000
O-H4   0.84410   0.01540   0.41670   1.00000
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Ca 0.00700 0.00800 0.00900 0.00000 -0.00100 0.00100
Mn1 0.00500 0.00600 0.01300 0.00000 0.00000 0.00000
Mg1 0.00500 0.00600 0.01300 0.00000 0.00000 0.00000
Zn1 0.00500 0.00600 0.01300 0.00000 0.00000 0.00000
Mn2 0.00700 0.00500 0.01000 0.00000 0.00000 0.00000
Mn3 0.00500 0.00700 0.01300 0.00000 -0.00200 0.00000
Mg3 0.00500 0.00700 0.01300 0.00000 -0.00200 0.00000
Fe4 0.00600 0.00800 0.01000 0.00000 -0.00200 0.00000
Al4 0.00600 0.00800 0.01000 0.00000 -0.00200 0.00000
Mn5 0.00700 0.00700 0.00900 0.00000 -0.00100 0.00000
Mg5 0.00700 0.00700 0.00900 0.00000 -0.00100 0.00000
Zn5 0.00700 0.00700 0.00900 0.00000 -0.00100 0.00000
Zn 0.00700 0.00800 0.00900 0.00000 -0.00100 -0.00100
Si 0.00500 0.00600 0.00400 0.00100 -0.00100 -0.00100
O1 0.00600 0.01000 0.01800 0.00100 0.00200 -0.00200
O2 0.00500 0.01500 0.00600 -0.00300 -0.00300 0.00200
O3 0.01000 0.00600 0.01100 0.00000 -0.00200 -0.00300
O4 0.00900 0.01100 0.00700 0.00700 0.00100 0.00300
O5 0.00900 0.00900 0.01300 -0.00300 -0.00700 0.00200
O-H1 0.01900 0.01800 0.00800 0.00400 0.00200 -0.00200
O-H2 0.00600 0.01100 0.00500 -0.00200 0.00000 0.00300
O-H3 0.00700 0.01900 0.01000 -0.00100 -0.00900 0.00000
O-H4 0.00600 0.01600 0.01600 0.00500 -0.00800 -0.00200