Microcline
Dal Negro A, De Pieri R, Quareni S
Acta Crystallographica B34 (1978) 2699-2707
The crystal structures of nine K feldspars from the Adamello
Massif (Northern Italy)
Note: Sample RC20C
Locality: Adamello Massif, Northern Italy
_database_code_amcsd 0020538
8.567 12.970 7.221 90.43 116. 88.48 C-1
atom     x     y     z  occ
K1   .2830 .9950 .1372  .92
Na1  .2830 .9950 .1372  .08
Al1  .0098 .1865 .2193   .8
Si1  .0098 .1865 .2193   .2
Al2  .0095 .8184 .2298  .14
Si2  .0095 .8184 .2298  .86
Al3  .7101 .1195 .3415 .025
Si3  .7101 .1195 .3415 .975
Al4  .7065 .8845 .3484 .025
Si4  .7065 .8845 .3484 .975
O1       0 .1444 .9875
O2   .6356 .0037 .2856
O3   .8223 .1469 .2225
O4   .8296 .8562 .2362
O5   .0349 .3173 .2544
O6   .0372 .6934 .2667
O7   .1875 .1238 .4059
O8   .1775 .8741 .4108