data_global _chemical_name_mineral 'Strontiopiemontite' loop_ _publ_author_name 'Bonazzi P' 'Menchetti S' 'Palenzona A' _journal_name_full 'European Journal of Mineralogy' _journal_volume 2 _journal_year 1990 _journal_page_first 519 _journal_page_last 523 _publ_section_title ; Strontiopiemontite, a new member of the epidote group, from Val Graveglia, Liguria, Italy Sample: SRPM ; _database_code_amcsd 0006386 _chemical_compound_source 'Val Graveglia, Liguria, Italy' _chemical_formula_sum 'Ca1.05 Mn1.1 Sr.73 Si3 Al1.8 Fe.32 O13 H' _cell_length_a 8.849 _cell_length_b 5.671 _cell_length_c 10.203 _cell_angle_alpha 90 _cell_angle_beta 114.63 _cell_angle_gamma 90 _cell_volume 465.430 _exptl_crystal_density_diffrn 3.754 _symmetry_space_group_name_H-M 'P 1 21/m 1' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,z' '-x,1/2+y,-z' '-x,-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 CaA1 0.76040 0.75000 0.15590 0.78000 0.01180 MnA1 0.76040 0.75000 0.15590 0.22000 0.01180 SrA2 0.59490 0.75000 0.42380 0.73000 0.01160 CaA2 0.59490 0.75000 0.42380 0.27000 0.01160 Si1 0.34070 0.75000 0.04030 1.00000 0.00750 Si2 0.68520 0.25000 0.27710 1.00000 0.00690 Si3 0.18080 0.75000 0.31540 1.00000 0.00590 AlM1 0.00000 0.00000 0.00000 0.78000 0.00850 MnM1 0.00000 0.00000 0.00000 0.19000 0.00850 FeM1 0.00000 0.00000 0.00000 0.03000 0.00850 AlM2 0.00000 0.00000 0.50000 1.00000 0.00690 AlM3 0.29540 0.25000 0.21890 0.02000 0.00650 MnM3 0.29540 0.25000 0.21890 0.69000 0.00650 FeM3 0.29540 0.25000 0.21890 0.29000 0.00650 O1 0.23350 0.99050 0.03440 1.00000 0.01120 O2 0.30030 0.97630 0.34940 1.00000 0.01160 O3 0.79570 0.01510 0.34010 1.00000 0.01070 O4 0.05690 0.25000 0.13070 1.00000 0.01020 O5 0.03860 0.75000 0.14520 1.00000 0.00780 O6 0.06730 0.75000 0.40770 1.00000 0.00970 O7 0.51660 0.75000 0.17120 1.00000 0.01360 O8 0.52470 0.25000 0.31300 1.00000 0.01340 O9 0.62800 0.25000 0.10240 1.00000 0.02290 O-H10 0.08290 0.25000 0.43140 1.00000 0.01160