Sanidine
Ackermann S, Kunz M, Armbruster T, Schefer J, Hanni H
Schweizerische Mineralogische und Petrographische Mitteilungen 84 (2004) 345-354
Cation distribution in a Fe-bearing K-feldspar from Itrongay, Madagascar:
A combined neutron- and X-ray single-crystal diffraction study
Note: Neutron diffraction data, occupancies taken from simultaneous data
Locality: Itrongay, Madagascar
_database_code_amcsd 0020559
8.5992 13.0277 7.1926 90 116.056 90 C2/m
atom      x      y      z  occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
K1M  .21490     .5 .86215 .895   .27   .026   .035   .032      0   .015      0
Na1M .21490     .5 .86215 .105   .27   .026   .035   .032      0   .015      0
SiT1 .99056 .18503 .77617  .65 .0107  .0114  .0118  .0092  .0022  .0047  .0011
AlT1 .99056 .18503 .77617  .33 .0107  .0114  .0118  .0092  .0022  .0047  .0011
FeT1 .99056 .18503 .77617  .02 .0107  .0114  .0118  .0092  .0022  .0047  .0011
SiT2 .20946 .38211 .34437  .88 .0107  .0110  .0093  .0107  .0002  .0042 -.0001
AlT2 .20946 .38211 .34437  .12 .0107  .0110  .0093  .0107  .0002  .0042 -.0001
O1    .1376     .5  .2847       .020   .019   .012   .018      0   .002      0
O2   .31960 .37380 .59451       .018   .020   .018   .010   .002   .003   .001
O3        0 .14630      0       .024   .024   .019   .014      0   .009      0
O4   .03516 .31119  .2585       .017   .017   .015   .017  -.002   .005  -.003
O5   .17233 .14676  .7730       .020   .022   .030   .022   .004   .014  -.000