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 X-rays
Locality: Lake County, Oregon, USA
_database_code_amcsd 0019664
8.1747 12.8706 7.1014 93.461 116.086 90.514 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   .2663  .9834  .1687 .317 .00479 .00661 .01010 -.00197 0.00372 -.00447
Na1   .2663  .9834  .1687 .183 .00479 .00661 .01010 -.00197 0.00372 -.00447
Ca2   .2709  .0300  .0970 .317 .00434 .00338 .00960 0.00115 0.00085 -.00221
Na2   .2709  .0300  .0970 .183 .00434 .00338 .00960 0.00115 0.00085 -.00221
Si1  .00588 .16271 .21481 .587 .00431 .00164 .00498 -.00043 0.00174 0.00035
Al1  .00588 .16271 .21481 .412 .00431 .00164 .00498 -.00043 0.00174 0.00035
Si2  .00275 .81645 .23109 .587 .00365 .00139 .00329 0.00071 0.00121 0.00003
Al2  .00275 .81645 .23109 .412 .00365 .00139 .00329 0.00071 0.00121 0.00003
Si3  .68425 .10878 .31709 .587 .00331 .00107 .00491 0.00016 0.00120 0.00000
Al3  .68425 .10878 .31709 .412 .00331 .00107 .00491 0.00016 0.00120 0.00000
Si4  .68086 .87873 .35765 .587 .00331 .00113 .00508 0.00005 0.00126 0.00049
Al4  .68086 .87873 .35165 .412 .00331 .00113 .00508 0.00005 0.00126 0.00049
Oa1   .0027  .1281  .9796      .01119 .00289 .00645 0.00087 0.00551 0.00088
Oa2   .5787  .9913  .2777      .00495 .00158 .00789 0.00010 0.00184 0.00060
Obo   .8121  .1033  .1879      .00853 .00213 .01321 -.00064 0.00564 -.00047
Obm   .8152  .8540  .2435      .00868 .00294 .02168 0.00054 0.00743 -.00107
Oco   .0141  .2892  .2830      .00681 .00280 .01179 -.00075 0.00370 0.00080
Ocm   .0115  .6866  .2118      .00657 .00269 .00880 0.00117 0.00159 -.00077
Odo   .1976  .1065  .3816      .00729 .00231 .00754 0.00027 0.00058 0.00043
Odm   .1906  .8657  .4307      .00810 .00301 .00998 0.00070 -.00055 -.00079