data_global
_chemical_name_mineral 'Cassagnaite'
loop_
_publ_author_name
'Basso R'
'Carbone C'
'Palenzona A'
_journal_name_full 'European Journal of Mineralogy'
_journal_volume 20 
_journal_year 2008
_journal_page_first 95
_journal_page_last 100
_publ_section_title
;
 Cassagnaite, a new, V-bearing silicate mineral from the Cassagna mine,
 northern Apennines, Italy
;
_database_code_amcsd 0007254
_chemical_compound_source 'Cassagna mine, northern Apennines, Liguria, Italy'
_chemical_formula_sum 'Ca1.65 Mn1.05 Fe.8 Al.75 V.35 Mg.3 Si2.6 O13 H3'
_cell_length_a 6.066
_cell_length_b 8.908
_cell_length_c 18.995
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 1026.412
_exptl_crystal_density_diffrn      3.222
_symmetry_space_group_name_H-M 'C m c m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,1/2+z'
  '1/2+x,1/2-y,1/2+z'
  '-x,y,1/2-z'
  '1/2-x,1/2+y,1/2-z'
  '-x,y,z'
  '1/2-x,1/2+y,z'
  'x,-y,-z'
  '1/2+x,1/2-y,-z'
  'x,y,1/2-z'
  '1/2+x,1/2+y,1/2-z'
  '-x,-y,1/2+z'
  '1/2-x,1/2-y,1/2+z'
  '-x,-y,-z'
  '1/2-x,1/2-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
Ca   0.00000   0.68340   0.15710   0.82500   0.01343
Mn   0.00000   0.68340   0.15710   0.17500   0.01343
Fe3+M1   0.25000   0.25000   0.00000   0.40000   0.00570
Mn3+M1   0.25000   0.25000   0.00000   0.35000   0.00570
AlM1   0.25000   0.25000   0.00000   0.25000   0.00570
V3+M2   0.24480   0.44110   0.25000   0.17500   0.00291
MgM2   0.24480   0.44110   0.25000   0.15000   0.00291
AlM2   0.24480   0.44110   0.25000   0.12500   0.00291
Si1   0.00000   0.10660   0.25000   0.60000   0.00785
Si2   0.00000   0.02890   0.09480   1.00000   0.00507
O1   0.00000   0.95550   0.17960   1.00000   0.00418
O2   0.22800   0.18640   0.25000   1.00000   0.02660
O3   0.21660   0.11820   0.08080   1.00000   0.00684
O4   0.00000   0.86660   0.05400   1.00000   0.02444
O-H5   0.00000   0.36810   0.03260   1.00000   0.01153
O-H6   0.00000   0.42140   0.17990   0.50000   0.01267