data_global
_chemical_name_mineral 'Mapiquiroite'
loop_
_publ_author_name
'Biagioni C'
'Orlandi P'
'Pasero M'
'Nestola F'
'Bindi L'
_journal_name_full 'European Journal of Mineralogy'
_journal_volume 26 
_journal_year 2014
_journal_page_first 427
_journal_page_last 437
_publ_section_title
;
 Mapiquiroite, (Sr,Pb)(U,Y)Fe2(Ti,Fe3+)18O38, a new member
 of the crichtonite group from the Apuan Alps, Tuscany, Italy
;
_database_code_amcsd 0020186
_chemical_compound_source 'Buca della Vena mine, Apuan Alps, Tuscany, Italy'
_chemical_formula_sum 'Sr.533 La.176 Pb.105 Na.03 Ca.026 U.407 Ce.101 Y.205 Mn.072 Fe5.42 Ti12.42 Cr1.62 V.18 Al.036 Sn.018 Nb.018 O38'
_cell_length_a 10.3719
_cell_length_b 10.3719
_cell_length_c 20.8752
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 1944.813
_exptl_crystal_density_diffrn      4.691
_symmetry_space_group_name_H-M 'R -3'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '2/3+x,1/3+y,1/3+z'
  '1/3+x,2/3+y,2/3+z'
  'y,-x+y,-z'
  '2/3+y,1/3-x+y,1/3-z'
  '1/3+y,2/3-x+y,2/3-z'
  '-x+y,-x,z'
  '2/3-x+y,1/3-x,1/3+z'
  '1/3-x+y,2/3-x,2/3+z'
  '-x,-y,-z'
  '2/3-x,1/3-y,1/3-z'
  '1/3-x,2/3-y,2/3-z'
  '-y,x-y,z'
  '2/3-y,1/3+x-y,1/3+z'
  '1/3-y,2/3+x-y,2/3+z'
  'x-y,x,-z'
  '2/3+x-y,1/3+x,1/3-z'
  '1/3+x-y,2/3+x,2/3-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
SrM0   0.00000   0.00000   0.00000   0.53300   0.02180
LaM0   0.00000   0.00000   0.00000   0.17600   0.02180
PbM0   0.00000   0.00000   0.00000   0.10500   0.02180
NaM0   0.00000   0.00000   0.00000   0.03000   0.02180
CaM0   0.00000   0.00000   0.00000   0.02600   0.02180
UM1   0.00000   0.00000   0.50000   0.40700   0.00710
CeM1   0.00000   0.00000   0.50000   0.10100   0.00710
YM1   0.00000   0.00000   0.50000   0.20500   0.00710
MnM1   0.00000   0.00000   0.50000   0.07200   0.00710
Fe3+M2   0.00000   0.00000   0.30924   1.00000   0.00700
TiM3   0.18354   0.03965   0.16506   0.69000   0.00750
Fe3+M3   0.18354   0.03965   0.16506   0.19000   0.00750
Cr3+M3   0.18354   0.03965   0.16506   0.09000   0.00750
V5+M3   0.18354   0.03965   0.16506   0.01000   0.00750
AlM3   0.18354   0.03965   0.16506   0.00200   0.00750
SnM3   0.18354   0.03965   0.16506   0.00100   0.00750
NbM3   0.18354   0.03965   0.16506   0.00100   0.00750
TiM4   0.08388   0.33058   0.60827   0.69000   0.01010
Fe3+M4   0.08388   0.33058   0.60827   0.19000   0.01010
Cr3+M4   0.08388   0.33058   0.60827   0.09000   0.01010
V5+M4   0.08388   0.33058   0.60827   0.01000   0.01010
AlM4   0.08388   0.33058   0.60827   0.00200   0.01010
SnM4   0.08388   0.33058   0.60827   0.00100   0.01010
NbM4   0.08388   0.33058   0.60827   0.00100   0.01010
TiM5   0.07587   0.31937   0.39877   0.69000   0.00890
Fe3+M5   0.07587   0.31937   0.39877   0.19000   0.00890
Cr3+M5   0.07587   0.31937   0.39877   0.09000   0.00890
V5+M5   0.07587   0.31937   0.39877   0.01000   0.00890
AlM5   0.07587   0.31937   0.39877   0.00200   0.00890
SnM5   0.07587   0.31937   0.39877   0.00100   0.00890
NbM5   0.07587   0.31937   0.39877   0.00100   0.00890
O1   0.13300   0.19040   0.56244   1.00000   0.01120
O2   0.71060   0.20600   0.44345   1.00000   0.01020
O3   0.35960   0.10130   0.55931   1.00000   0.00890
O4   0.59180   0.03210   0.55013   1.00000   0.00980
O5   0.05190   0.85600   0.33592   1.00000   0.00940
O6   0.36660   0.09900   0.33985   1.00000   0.00940
O7   0.00000   0.00000   0.21550   1.00000   0.00950