data_global
_chemical_name_mineral 'Conichalcite'
loop_
_publ_author_name
'Qurashi M M'
'Barnes W H'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 7 
_journal_year 1963
_journal_page_first 561
_journal_page_last 577
_publ_section_title
;
 The structures of the minerals of the descloizite and adelite groups:
 IV - descloizite and conichalcite (part 2) The structure of conichalcite
;
_database_code_amcsd 0005080
_chemical_formula_sum 'Ca Cu As O5 H'
_cell_length_a 7.40
_cell_length_b 5.84
_cell_length_c 9.21
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 398.019
_exptl_crystal_density_diffrn      4.331
_symmetry_space_group_name_H-M 'P 21 21 21'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,1/2+y,1/2-z'
  '1/2+x,1/2-y,-z'
  '1/2-x,-y,1/2+z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Ca   0.11600   0.26900   0.42500   0.00253
Cu   0.00000   0.00000   0.75000   0.01203
As   0.36800  -0.23300   0.58000   0.00937
O1   0.18700  -0.25600   0.70000   0.01267
O2   0.53800  -0.17600   0.69400   0.01267
O3   0.37800   0.50900   0.48900   0.01267
O4   0.36800  -0.01600   0.47400   0.01267
O-H5   0.15100   0.25000   0.68000   0.01267