Anorthite
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
Note: studied with neutrons
Locality: Surtsey, Iceland
_database_code_amcsd 0019663
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