data_global
_chemical_name_mineral 'Ferrilotharmeyerite'
loop_
_publ_author_name
'Krause W'
'Belendorff K'
'Bernhardt H J'
'McCammon C A'
'Effenberger H'
'Mikenda W'
_journal_name_full 'European Journal of Mineralogy'
_journal_volume 10 
_journal_year 1998
_journal_page_first 179
_journal_page_last 206
_publ_section_title
;
 Crystal chemistry of the tsumcorite-group minerals. New data on ferrilotharmeyerite,
 tsumcorite, thometzekite, mounanaite, helmutwinklerite, and a redefinition of gartrellite
;
_database_code_amcsd 0006708
_chemical_compound_source 'Tsumeb mine, Namibia'
_chemical_formula_sum 'Ca (Fe.994 Zn1.006) As2 (O10 H2)'
_cell_length_a 9.010
_cell_length_b 6.246
_cell_length_c 7.391
_cell_angle_alpha 90
_cell_angle_beta 115.52
_cell_angle_gamma 90
_cell_volume 375.358
_exptl_crystal_density_diffrn      4.187
_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
CaMe1   0.00000   0.00000   0.00000   1.00000   0.01165
FeMe2   0.25000   0.25000   0.50000   0.49700   0.00925
ZnMe2   0.25000   0.25000   0.50000   0.50300   0.00925
AsX   0.91466   0.50000   0.20451   1.00000   0.00760
O-H1   0.34390   0.50000   0.40830   1.00000   0.01165
O2   0.31830   0.00000   0.36210   1.00000   0.01418
O3   0.03390   0.27980   0.24530   1.00000   0.01127
O4   0.24290   0.50000   0.02060   1.00000   0.01570