data_global
_chemical_name_mineral 'Popovite'
loop_
_publ_author_name
'Pekov I V'
'Zubkova N V'
'Yapaskurt V O'
'Belakovskiy D I'
'Vigasina M F'
'Sidorov E G'
'Pushcharovsky D Y'
_journal_name_full 'Mineralogical Magazine'
_journal_volume 79 
_journal_year 2015
_journal_page_first 133
_journal_page_last 143
_publ_section_title
;
 New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano,
 Kamchatka, Russia. III. Popovite, Cu5O2(AsO4)2
;
_database_code_amcsd 0020397
_chemical_compound_source 'Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia'
_chemical_formula_sum 'Cu4.99 Zn.04 As1.95 S.02 V.01 O10'
_cell_length_a 5.1450
_cell_length_b 6.2557
_cell_length_c 6.2766
_cell_angle_alpha 100.064
_cell_angle_beta 96.351
_cell_angle_gamma 95.100
_cell_volume 196.474
_exptl_crystal_density_diffrn      5.299
_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_occupancy
_atom_site_U_iso_or_equiv
Cu1   0.00000   0.00000   0.50000   0.99800   0.00890
Zn1   0.00000   0.00000   0.50000   0.00800   0.00890
Cu2   0.14290   0.66303   0.72409   0.99800   0.01060
Zn2   0.14290   0.66303   0.72409   0.00800   0.01060
Cu3   0.74550   0.87429   0.94844   0.99800   0.01050
Zn3   0.74550   0.87429   0.94844   0.00800   0.01050
As   0.40982   0.66287   0.27191   0.97500   0.00740
S   0.40982   0.66287   0.27191   0.01000   0.00740
V   0.40982   0.66287   0.27191   0.00500   0.00740
O1   0.97940   0.06040   0.21590   1.00000   0.00630
O2   0.41940   0.81130   0.06990   1.00000   0.00850
O3   0.20170   0.43930   0.17230   1.00000   0.01090
O4   0.29460   0.80330   0.48910   1.00000   0.00910
O5   0.71760   0.61000   0.34650   1.00000   0.00970