Sanidine
Ohashi Y, Finger LW
Carnegie Institution of Washington: Yearbook 73 (1974) 539-544
Refinement of the crystal structure of sanidine at 25 and 400C
Note: T = 400 C
Locality: Laacher See, Eifel District, Germany
_database_code_amcsd 0020565
8.603 13.011 7.175 90 115.90 90 C2/m
atom     x     y     z occ Biso
K    .2908     0 .1400 .86  4.7
Na   .2908     0 .1400 .14  4.7
SiT1 .0103 .1857 .2238 .68 1.90
AlT1 .0103 .1857 .2238 .32 1.90
SiT2 .7116 .1191 .3460 .82 1.96
AlT2 .7116 .1191 .3460 .18 1.96
Oa1      0 .1487     0	    4.1
Oa2  .6460     0 .2862	    3.3
Ob   .8318 .1496 .2309	    3.5
Oc   .0359 .3104 .2600	    2.7
Od   .1787 .1271 .4039	    3.2