data_9009585
_chemical_name 'Zanazziite'
loop_
_publ_author_name
'Fanfani L'
'Nunzi A'
'Zananni P F'
'Zanzari A R'
_journal_name_full "Tschermaks Mineralogische und Petrographische Mitteilungen"
_journal_volume 22
_journal_year 1975
_journal_page_first 266
_journal_page_last 277
_publ_section_title
;
 The crystal structure of roscherite
 Locality: Lavra da Ilha, Taquaral, Minas Gerais, Brazil
;
_chemical_formula_sum 'Ca (Mg1.4 Fe.6) Al.67 Be2 P3 O17 H5.7'
_cell_length_a 15.874
_cell_length_b 11.854
_cell_length_c 6.605
_cell_angle_alpha 90
_cell_angle_beta 95.43
_cell_angle_gamma 90
_cell_volume 1237.288
_symmetry_space_group_name_H-M 'C 1 2/c 1'
loop_
_symmetry_equiv_pos_as_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'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Ca   0.00000   0.25990   0.25000   1.00000
Mg   0.17140   0.16300  -0.00430   0.70000
Fe   0.17140   0.16300  -0.00430   0.30000
Al   0.00000   0.00000   0.00000   0.67000
Be   0.33220   0.17720   0.30240   1.00000
P1   0.18740   0.11660   0.47770   1.00000
P2   0.00000   0.27270   0.75000   1.00000
O1   0.14310   0.00230   0.50120   1.00000
O2   0.28160   0.09890   0.45080   1.00000
O3   0.14420   0.18240   0.29730   1.00000
O4   0.18050   0.18490   0.67540   1.00000
O5   0.04100   0.20060   0.92330   1.00000
O6   0.06610   0.34960   0.66000   1.00000
O-H7   0.29990   0.16360   0.06440   1.00000
O-H8   0.00000   0.04280   0.75000   1.00000
Wat9   0.09350   0.42050   0.22000   1.00000