Orthoclase
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 CA1A
Locality: Adamello Massif, Northern Italy
_database_code_amcsd 0020552
8.563 12.990 7.210 90 115.93 90 C-1
atom     x     y     z  occ
K1   .2840 .9993 .1375  .88
Na1  .2840 .9993 .1375   .1
Ca1  .2840 .9993 .1375  .01
Ba1  .2840 .9993 .1375  .01
Al1  .0096 .1846 .2235  .47
Si1  .0096 .1846 .2235  .53
Al2  .0095 .8160 .2252 .365
Si2  .0095 .8160 .2252 .635
Al3  .7087 .1180 .3441 .085
Si3  .7087 .1180 .3441 .915
Al4  .7082 .8826 .3451 .085
Si4  .7082 .8826 .3451 .915
O1   .9999 .1452 .9981
O2   .6355 .0006 .2855
O3   .8261 .1457 .2271
O4   .8268 .8544 .2290
O5   .0353 .3123 .2582
O6   .0353 .6893 .2601
O7   .1826 .1255 .4065
O8   .1809 .8742 .4074