Anorthite
Foit F F, Peacor D R
American Mineralogist 58 (1973) 665-675
The anorthite crystal structure at 410 and 830 C
T = 410 C
_database_code_amcsd 0000370
8.194 12.897 14.190 92.98 115.82 91.15 P-1
atom          x     y     z Biso
Ca(000)   .2672 .9878 .0822 3.80
Ca(z00)   .2740 .0333 .5452 1.65
Ca(0i0)   .7736 .5326 .5465 1.27
Ca(zi0)   .7623 .5099 .0656 2.21
Si1(0000) .0132 .1548 .1069  1.0
Si1(00i0) .5009 .6644 .6026  1.2
Si1(mz00) .9998 .8116 .6106   .9
Si1(mzi0) .5066 .3238 .1129  1.1
Si2(0z00) .6723 .1059 .6625  1.4
Si2(0zi0) .1834 .6063 .1545   .7
Si2(m000) .6742 .8806 .1864  1.2
Si2(m0i0) .1805 .3822 .6753   .9
Al1(0z00) .0059 .1587 .6111  1.1
Al1(0zi0) .4994 .6704 .1126   .8
Al1(m000) .9897 .8110 .1192  1.1
Al1(m0i0) .5115 .3187 .6204   .8
Al2(0000) .6896 .1146 .1565  1.6
Al2(00i0) .1899 .6126 .6645   .9
Al2(mz00) .6835 .8711 .6727  1.1
Al2(mzio) .1866 .3799 .1813   .8
OA(1000)  .0156 .1335 .9943  1.7
OA(1z00)  .9785 .1295 .4869  1.2
OA(10i0)  .4988 .6191 .4870  1.5
OA(1zio)  .5199 .6262 .9947  1.5
OA(2000)  .5826 .9939 .1516  1.3
OA(2z00)  .5730 .9931 .6473  1.7
OA(20i0)  .0783 .4874 .6308   .7
OA(2zi0)  .0793 .4905 .1313   .7
OB(0000)  .8103 .1086 .0865  1.9
OB(0z00)  .8117 .1013 .6035  1.4
OB(00i0)  .3343 .5947 .5985  1.3
OB(0zi0)  .2825 .6068 .0819  1.6
OB(m000)  .8226 .8585 .1374  2.6
OB(mz00)  .8129 .8546 .6066  1.6
OB(m0i0)  .2960 .3546 .6161  2.1
OB(mzio)  .3403 .3592 .1262  3.2
OC(0000)  .0283 .2754 .1491  1.7
OC(0z00)  .0384 .2922 .6471  1.6
OC(00i0)  .4994 .7846 .6253  1.1
OC(0zi0)  .5002 .7974 .1511  1.3
OC(m000)  .9987 .6808 .1152  1.3
OC(mz00)  .0042 .6888 .6098  1.8
OC(m0i0)  .5193 .1812 .6023  1.6
OC(mzi0)  .5114 .1926 .0946  1.5
OD(0000)  .1821 .1131 .1941  2.6
OD(0z00)  .2126 .1087 .6879  1.3
OD(00i0)  .6984 .6029 .6822  1.1
OD(0zi0)  .6885 .6001 .1973  1.7
OD(m000)  .2043 .8773 .2136  1.7
OD(mz00)  .1657 .8592 .7160  2.8
OD(m0i0)  .6857 .3597 .7251  2.1
OD(mzi0)  .7024 .3629 .2041  1.3