data_global
_chemical_name_mineral 'Ezcurrite'
loop_
_publ_author_name
'Cannillo E'
'Dal Negro A'
'Ungaretti L'
_journal_name_full 'American Mineralogist'
_journal_volume 58 
_journal_year 1973
_journal_page_first 110
_journal_page_last 115
_publ_section_title
;
 The crystal structure of ezcurrite
;
_database_code_amcsd 0000304
_chemical_formula_sum 'Na2 B5 H5 O12'
_cell_length_a 8.598
_cell_length_b 9.570
_cell_length_c 6.576
_cell_angle_alpha 102.75
_cell_angle_beta 107.50
_cell_angle_gamma 71.52
_cell_volume 484.714
_exptl_crystal_density_diffrn      2.035
_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_U_iso_or_equiv
Na1   0.89880   0.37000   0.03730   0.02292
Na2   0.58600   0.15190   0.56160   0.03648
B1   0.33330   0.16080   0.14630   0.01330
B2   0.25660   0.28500  -0.17770   0.01418
B3   0.45800   0.36070   0.15600   0.01621
B4  -0.04850   0.37100  -0.37610   0.01444
B5   0.15900   0.26230  -0.58120   0.01203
H1   0.51800  -0.04500   0.16700   0.03800
H2   0.59300   0.50700   0.18600   0.03800
H3  -0.29200   0.42800  -0.48100   0.03800
H4   0.78100  -0.02100   0.28800   0.06333
H5   0.74900   0.08700   0.91900   0.06333
O1   0.17560   0.22440   0.21690   0.01482
O2   0.41100   0.01180   0.21300   0.01710
O3   0.29820   0.15100  -0.08670   0.01292
O4   0.45080   0.25640   0.25270   0.01697
O5   0.56660   0.44760   0.26760   0.02457
O6   0.36270   0.38650  -0.04740   0.01697
O7   0.07780   0.37270  -0.18680   0.01532
O8   0.28460   0.24890  -0.39910   0.01494
O9  -0.20720   0.41560  -0.35080   0.02533
O10  -0.01130   0.32590  -0.56950   0.01862
O11   0.82650   0.05470   0.40410   0.05155
O12   0.82610   0.14400   0.97320   0.09220