data_global _chemical_name_mineral 'Actinolite' loop_ _publ_author_name 'Evans B W' 'Yang H' _journal_name_full 'American Mineralogist' _journal_volume 83 _journal_year 1998 _journal_page_first 458 _journal_page_last 475 _publ_section_title ; Fe-Mg order-disorder in tremolite-actinolite-ferro-actinolite at ambient and high temperature Sample: NMNH 156831, from Green Monster Mine, Alaska in uralite from cpx ; _database_code_amcsd 0001987 _chemical_formula_sum 'Fe1.538 Mn.052 Mg3.364 Al.194 Ti.002 Ca1.922 Na.052 Si7.888 K.01 H1.92 O24' _cell_length_a 9.881 _cell_length_b 18.139 _cell_length_c 5.298 _cell_angle_alpha 90 _cell_angle_beta 104.78 _cell_angle_gamma 90 _cell_volume 918.149 _exptl_crystal_density_diffrn 3.118 _symmetry_space_group_name_H-M 'C 1 2/m 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,z' '1/2+x,1/2-y,z' '-x,y,-z' '1/2-x,1/2+y,-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 Fe1 0.00000 0.08840 0.50000 0.32400 Mn1 0.00000 0.08840 0.50000 0.00800 Mg1 0.00000 0.08840 0.50000 0.66800 Fe2 0.00000 0.17770 0.00000 0.28900 Mn2 0.00000 0.17770 0.00000 0.01700 Mg2 0.00000 0.17770 0.00000 0.65300 Al2 0.00000 0.17770 0.00000 0.04100 Ti2 0.00000 0.17770 0.00000 0.00100 Fe3 0.00000 0.00000 0.00000 0.29600 Mg3 0.00000 0.00000 0.00000 0.70400 Fe4 0.00000 0.27800 0.50000 0.00800 Mn4 0.00000 0.27800 0.50000 0.00100 Mg4 0.00000 0.27800 0.50000 0.00900 Ca4 0.00000 0.27800 0.50000 0.96100 Na4 0.00000 0.27800 0.50000 0.02300 Si1 0.28000 0.08410 0.29620 0.97200 Al1 0.28000 0.08410 0.29620 0.02800 Si2 0.28890 0.17100 0.80420 1.00000 NaA(m) 0.01000 0.50000 0.08400 0.00300 KA(m) 0.01000 0.50000 0.08400 0.00500 H 0.21800 0.00000 0.76300 0.96000 O1 0.11150 0.08680 0.21530 1.00000 O2 0.11950 0.17240 0.72390 1.00000 O3 0.11070 0.00000 0.71480 1.00000 O4 0.36630 0.24700 0.79260 1.00000 O5 0.34560 0.13390 0.09860 1.00000 O6 0.34290 0.11900 0.58780 1.00000 O7 0.33520 0.00000 0.29090 1.00000 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 Fe1 0.01202 0.00833 0.00651 0.00000 0.00347 0.00000 Mn1 0.01202 0.00833 0.00651 0.00000 0.00347 0.00000 Mg1 0.01202 0.00833 0.00651 0.00000 0.00347 0.00000 Fe2 0.00971 0.00833 0.00784 0.00000 0.00273 0.00000 Mn2 0.00971 0.00833 0.00784 0.00000 0.00273 0.00000 Mg2 0.00971 0.00833 0.00784 0.00000 0.00273 0.00000 Al2 0.00971 0.00833 0.00784 0.00000 0.00273 0.00000 Ti2 0.00971 0.00833 0.00784 0.00000 0.00273 0.00000 Fe3 0.00971 0.00667 0.00558 0.00000 0.00248 0.00000 Mg3 0.00971 0.00667 0.00558 0.00000 0.00248 0.00000 Fe4 0.01341 0.01000 0.01130 0.00000 0.00719 0.00000 Mn4 0.01341 0.01000 0.01130 0.00000 0.00719 0.00000 Mg4 0.01341 0.01000 0.01130 0.00000 0.00719 0.00000 Ca4 0.01341 0.01000 0.01130 0.00000 0.00719 0.00000 Na4 0.01341 0.01000 0.01130 0.00000 0.00719 0.00000 Si1 0.00601 0.00500 0.00359 0.00000 0.00149 -0.00047 Al1 0.00601 0.00500 0.00359 0.00000 0.00149 -0.00047 Si2 0.00740 0.00667 0.00399 -0.00088 0.00174 -0.00047 O1 0.00832 0.00833 0.00572 0.00000 0.00223 -0.00047 O2 0.00786 0.00833 0.00798 0.00000 0.00198 0.00047 O3 0.01156 0.00833 0.00824 0.00000 0.00347 0.00000 O4 0.01202 0.00833 0.00944 -0.00176 0.00446 -0.00094 O5 0.00971 0.01167 0.00691 0.00088 0.00248 0.00330 O6 0.01017 0.01000 0.00585 0.00176 0.00174 -0.00235 O7 0.01064 0.00667 0.01263 0.00000 0.00397 0.00000