Orthoclase Prince E, Donnay G, Martin R F American Mineralogist 58 (1973) 500-507 Neutron diffraction refinement of an ordered orthoclase structure Locality: Himalaya mine, California, USA _database_code_amcsd 0000320 8.5632 12.963 7.2099 90 116.073 90 C2/m atom x y z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Si1 .0095 .1842 .2247 .5 .017478 .012538 .011905 -.002913 .007472 -.001900 Al1 .0095 .1842 .2247 .5 .017478 .012538 .011905 -.002913 .007472 -.001900 Si2 .7085 .1176 .3446 .017478 .012032 .013932 .000253 .006966 .000380 K .2840 0 .1388 .86 .018998 .030396 .025330 0 .006586 0 Na .2840 0 .1388 .10 .018998 .030396 .025330 0 .006586 0 OA(1) 0 .1451 0 .026977 .019504 .023810 0 .012032 0 OA(2) .6365 0 .2853 .024570 .012285 .019378 0 .004179 0 OB .8256 .1459 .2279 .027610 .031030 .028243 -.003040 .018618 .002026 OC .0353 .3118 .2599 .021024 .017731 .022164 -.003800 .008106 -.004559 OD .1818 .1252 .4080 .024190 .020264 .012665 .001773 .002913 .001646