data_global
_chemical_name_mineral 'Cornubite'
loop_
_publ_author_name
'Tillmanns E'
'Hofmeister W'
'Petitjean K'
_journal_name_full 'Bulletin of the Geological Society of Finland'
_journal_volume 57 
_journal_year 1985
_journal_page_first 119
_journal_page_last 127
_publ_section_title
;
 Cornubite, Cu5(AsO4)2(OH)4, first occurence of single crystals,
 mineralogical description and crystal structure
;
_database_code_amcsd 0012147
_chemical_compound_source 'Reichenbach, Odenwald near Bensheim, Hessen, West Germany'
_chemical_formula_sum 'Cu5 As2 O12'
_cell_length_a 6.121
_cell_length_b 6.251
_cell_length_c 6.790
_cell_angle_alpha 92.93
_cell_angle_beta 111.30
_cell_angle_gamma 107.47
_cell_volume 227.109
_exptl_crystal_density_diffrn      4.823
_symmetry_space_group_name_H-M 'P -1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Cu(l)   0.00000   0.00000   0.00000   0.00684
Cu(2)  -0.00406   0.32402   0.33203   0.00785
Cu(3)   0.50677   0.32154   0.32393   0.00684
As   0.44718   0.17614   0.79809   0.00608
O(1)   0.83270   0.68830   0.86020   0.00709
O(2)   0.83860   0.99050   0.21470   0.00899
O(3)   0.60340   0.01620   0.73860   0.00937
O(4)   0.83830   0.34430   0.53290   0.00747
O(5)   0.38180   0.33950   0.60670   0.00849
O(6)   0.36500   0.65720   0.96230   0.00988