data_global
_chemical_name_mineral 'Larderellite'
loop_
_publ_author_name
'Merlino S'
'Sartori F'
_journal_name_full 'Acta Crystallographica, Section B'
_journal_volume 25 
_journal_year 1969
_journal_page_first 2264
_journal_page_last 2270
_publ_section_title
;
 The crystal structure of lardellite, NH4B5O7(OH)2*H2O
;
_database_code_amcsd 0009364
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'N B5 O10 H4'
_cell_length_a 9.47
_cell_length_b 7.63
_cell_length_c 11.65
_cell_angle_alpha 90
_cell_angle_beta 97.08
_cell_angle_gamma 90
_cell_volume 835.365
_exptl_crystal_density_diffrn      1.845
_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
_atom_site_U_iso_or_equiv
NH4   0.32190   0.43930   0.26580   0.02444
B1   0.56560   0.30910   0.07100   0.01659
B2   0.74870   0.51110   0.04480   0.02153
B3   0.70000   0.45330   0.24310   0.01165
B4   0.63140   0.59350   0.41920   0.01583
B5   0.82460   0.39090   0.44180   0.01039
O1   0.45620   0.20120   0.02190   0.01355
O2   0.63690   0.40370  -0.00360   0.01608
O-h3   0.82150   0.59420  -0.03570   0.01596
O4   0.59970   0.32320   0.18790   0.01697
O5   0.77360   0.54260   0.15830   0.01355
O6   0.62050   0.57790   0.30470   0.01279
O7   0.80690   0.36140   0.32750   0.01583
O8   0.73500   0.50050   0.49260   0.01545
O-h9   0.93220   0.30670   0.50880   0.01786
Ow10   0.95520   0.11280   0.22950   0.02406
H1   0.05600   0.08900   0.26000   0.06333
H2   0.89900   0.20800   0.26700   0.06333
H3   0.94100   0.33800   0.59700   0.06333
H4   0.91100   0.67100  -0.02600   0.06333