data_global
_chemical_name_mineral 'Akrochordite'
loop_
_publ_author_name
'Moore P B'
'Sen Gupta P K'
'Schlemper E O'
_journal_name_full 'American Mineralogist'
_journal_volume 74 
_journal_year 1989
_journal_page_first 256
_journal_page_last 262
_publ_section_title
;
 Akrochordite, (Mn,Mg)5(OH)4(H2O)4(AsO4)2: A sheet structure with amphibole walls
;
_database_code_amcsd 0001206
_chemical_formula_sum 'Mn5 As2 O16 H12'
_cell_length_a 5.682
_cell_length_b 17.627
_cell_length_c 6.832
_cell_angle_alpha 90
_cell_angle_beta 99.49
_cell_angle_gamma 90
_cell_volume 674.905
_exptl_crystal_density_diffrn      3.408
_symmetry_space_group_name_H-M 'P 1 21/c 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2-y,1/2+z'
  '-x,1/2+y,1/2-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Mn1   0.00000   0.00000   0.00000
Mn2   0.47580   0.06180   0.79670
Mn3  -0.05660   0.13150   0.64700
As   0.36830   0.11850   0.31880
O1   0.35120   0.04700   0.14830
O2   0.57910   0.09650   0.51490
O3   0.10330   0.13350   0.38840
O4   0.43800   0.19730   0.20370
O-H5   0.12520   0.02350   0.72720
O-H6   0.81440   0.10360   0.91750
Wat1   0.29640   0.17340   0.82320
Wat2   0.85880   0.24830   0.15660
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Mn1 0.01630 0.01950 0.01500 -0.00030 -0.00300 0.00640
Mn2 0.01200 0.01440 0.01710 0.00060 -0.00360 0.00430
Mn3 0.01590 0.01630 0.00990 0.00080 -0.00160 0.00150
As 0.01180 0.01020 0.00490 0.00020 -0.00370 0.00040
O1 0.01680 0.01060 0.01160 -0.00010 -0.00630 -0.00320
O2 0.01420 0.02110 0.00860 0.00050 -0.00700 0.00540
O3 0.02330 0.02540 0.00910 0.00370 0.00340 0.00190
O4 0.02180 0.01010 0.01120 -0.00220 0.00130 -0.00030
O-H5 0.01820 0.01150 0.00620 0.00090 -0.00120 -0.00100
O-H6 0.01530 0.01310 0.00560 0.00010 -0.00220 0.00020
Wat1 0.01850 0.01280 0.00840 -0.00280 -0.00370 -0.00090
Wat2 0.01760 0.01630 0.01740 -0.00070 -0.00340 0.00060