Sanidine Kimata M, Saito S, Shimizu M, Iida I, Matsui T Neues Jahrbuch fur Mineralogie, Abhandlungen 171 (1996) 199-213 Low-temperature structures of orthoclase and sanidine Note: T = 121 K Locality: Volkesfeld, Eifel, Germany _database_code_amcsd 0020560 8.514 13.018 7.183 90 116.03 90 C2/m atom x y z occ Biso K .2820 0 .1359 1.434 SiT1 .0091 .1837 .2237 .692 .585 AlT1 .0091 .1837 .2237 .308 .585 SiT2 .7056 .1175 .3440 .808 .534 AlT2 .7056 .1175 .3440 .192 .534 Oa1 0 .1455 0 1.140 Oa2 .6301 0 .2859 1.229 Ob .8273 .1437 .2267 1.272 Oc .0314 .3092 .2560 .978 Od .1830 .1261 .4055 .974