Labradorite Wenk H R, Joswig W, Tagai T, Korekawa M, Smith B K American Mineralogist 65 (1980) 81-95 The average structure of An 62-66 labradorite Surtsey neutron feldspar _database_code_amcsd 0000758 8.1736 12.8736 7.1022 93.462 116.054 90.475 C-1 atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Ca1 .2666 .9870 .1620 .325 0.0061 0.0099 0.0180 -.0024 0.0058 -.0073 Na1 .2666 .9870 .1620 .160 0.0061 0.0099 0.0180 -.0024 0.0058 -.0073 Ca2 .2733 .0309 .0950 .325 0.0021 0.0031 0.0102 0.0018 0.0012 -.0004 Na2 .2733 .0309 .0950 .160 0.0021 0.0031 0.0102 0.0018 0.0012 -.0004 Si1 .0062 .1632 .2153 .595 0.0037 0.0018 0.0077 0.0000 0.0025 0.0004 Al1 .0062 .1632 .2153 .405 0.0037 0.0018 0.0077 0.0000 0.0025 0.0004 Si2 .0026 .8163 .2306 .595 0.0042 0.0020 0.0075 0.0012 0.0032 0.0003 Al2 .0026 .8163 .2306 .405 0.0042 0.0020 0.0075 0.0012 0.0032 0.0003 Si3 .6848 .1088 .3177 .595 0.0034 0.0015 0.0089 0.0005 0.0029 0.0002 Al3 .6848 .1088 .3177 .405 0.0034 0.0015 0.0089 0.0005 0.0029 0.0002 Si4 .6806 .8790 .3571 .595 0.0032 0.0013 0.0095 0.0003 0.0034 0.0006 Al4 .6806 .8790 .3517 .405 0.0032 0.0013 0.0095 0.0003 0.0034 0.0006 Oa1 .0039 .1290 .9808 0.0108 0.0034 0.0114 0.0010 0.0071 0.0011 Oa2 .5799 .9912 .2786 0.0047 0.0019 0.0125 0.0004 0.0035 0.0009 Obo .8130 .1036 .1892 0.0080 0.0026 0.0172 -.0003 0.0076 -.0001 Obm .8158 .8530 .2444 0.0080 0.0034 0.0236 0.0011 0.0097 -.0004 Oco .0143 .2895 .2817 0.0069 0.0028 0.0146 -.0006 0.0051 0.0006 Ocm .0122 .6866 .2130 0.0069 0.0029 0.0116 0.0016 0.0027 -.0003 Odo .1972 .1074 .3816 0.0069 0.0027 0.0113 0.0006 0.0025 0.0006 Odm .1902 .8660 .4293 0.0072 0.0032 0.0148 0.0007 0.0013 -.0005