data_9000156
_chemical_name 'Flinkite'
loop_
_publ_author_name
'Moore P B'
_journal_name_full "American Mineralogist"
_journal_volume 52
_journal_year 1967
_journal_page_first 1603
_journal_page_last 1613
_publ_section_title
;
 Crystal chemistry of the basic manganese arsenate minerals 1. The crystal
 structures of flinkite, Mn2Mn(OH)4(AsO4) and retzian, Mn2Y(OH)4(AsO4)
;
_chemical_formula_sum 'Mn3 As (O8 H4)'
_cell_length_a 9.55
_cell_length_b 13.11
_cell_length_c 5.25
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 657.303
_symmetry_space_group_name_H-M 'P n m a'
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  'x,1/2-y,z'
  '-x,1/2+y,-z'
  '1/2-x,1/2+y,1/2+z'
  '1/2+x,1/2-y,1/2-z'
  '1/2+x,y,1/2-z'
  '1/2-x,-y,1/2+z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_Uiso_or_equiv
Mn1   0.00000   0.00000   0.00000   0.01596
Mn2   0.02050   0.13190   0.48750   0.01786
As   0.15420   0.75000   0.02570   0.00595
O-H1   0.13980   0.07560   0.16170   0.01659
O2  -0.09160   0.14740   0.83610   0.01216
O-H3  -0.09940   0.00590   0.29740   0.01343
O4   0.09880   0.75000   0.70670   0.01267
O5   0.17050   0.25000   0.54380   0.01241