data_global
_chemical_name_mineral 'Martyite'
loop_
_publ_author_name
'Kampf A R'
'Steele I M'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 46 
_journal_year 2008
_journal_page_first 687
_journal_page_last 692
_publ_section_title
;
 Martyite, a new mineral species related to volborthite: Description and crystal structure
;
_database_code_amcsd 0006193
_chemical_compound_source 'Blue Cap mine, San Juan County, Utah'
_chemical_formula_sum 'Zn2.64 Co.15 V2 O11 H6'
_cell_length_a 6.0818
_cell_length_b 6.0818
_cell_length_c 7.1793
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 229.973
_exptl_crystal_density_diffrn      3.360
_symmetry_space_group_name_H-M 'P -3 m 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-y,-x,z'
  'y,-x+y,-z'
  '-x,-x+y,-z'
  '-x+y,-x,z'
  '-x+y,y,z'
  '-x,-y,-z'
  'y,x,-z'
  '-y,x-y,z'
  'x,x-y,z'
  'x-y,x,-z'
  'x-y,-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
Zn   0.50000   0.00000   0.50000   0.88000   0.01850
Co   0.50000   0.00000   0.50000   0.05000   0.01850
V   0.00000   0.00000   0.24954   1.00000   0.01010
O1   0.15680  -0.15680   0.32670   1.00000   0.02250
O2   0.00000   0.00000   0.00000   1.00000   0.03060
O-h   0.66667   0.33333   0.37530   1.00000   0.01520
Ow   0.66667   0.33333   0.00130   1.00000   0.07890
Hw   0.83000   0.41500  -0.02900   0.66667   0.05000
H-OH   0.66667   0.33333   0.24700   1.00000   0.05000
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
Zn 0.01570 -0.01130 0.02700 0.00560 0.00250 0.00500
Co 0.01570 0.01130 0.02700 0.00560 0.00250 0.00500
V 0.01020 0.01020 0.01000 0.00510 0.00000 0.00000
O1 0.02050 0.02050 0.02250 0.00720 -0.00160 0.00160
O2 0.03480 0.03480 0.02230 0.01740 0.00000 0.00000
O-h 0.01370 0.01370 0.01820 0.00680 0.00000 0.00000
Ow 0.10110 0.10110 0.03460 0.05060 0.00000 0.00000