Pigeonite Domeneghetti M C, Zema M, Tazzoli V American Mineralogist 90 (2005) 1816-1823 Kinetics of Fe2+-Mg order-disorder in P2_1/c pigeonite Locality: Parana, Brazil Sample: N.35, annealed at T = 700 C for t = 10 min _database_code_amcsd 0003963 9.7093 8.9417 5.2479 90 108.507 90 P2_1/c atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) MgM2A .255175 .016824 .228003 .1519 .009804 .010982 .006652 .000330 .000634 .001771 FeM2A .255175 .016824 .228003 .6279 .009804 .010982 .006652 .000330 .000634 .001771 CaM2A .255175 .016824 .228003 .0685 .009804 .010982 .006652 .000330 .000634 .001771 MnM2A .255175 .016824 .228003 .0256 .009804 .010982 .006652 .000330 .000634 .001771 NaM2A .255175 .016824 .228003 .0031 .009804 .010982 .006652 .000330 .000634 .001771 CaM2B .254366 .048966 .251399 .1230 .011947 MgM1 .250449 .654666 .232018 .7705 .007892 .006868 .007510 .000123 .002515 .000322 Fe2+M1 .250449 .654666 .232018 .2019 .007892 .006868 .007510 .000123 .002515 .000322 Fe3+M1 .250449 .654666 .232018 .0146 .007892 .006868 .007510 .000123 .002515 .000322 TiM1 .250449 .654666 .232018 .0102 .007892 .006868 .007510 .000123 .002515 .000322 MnM1 .250449 .654666 .232018 .0028 .007892 .006868 .007510 .000123 .002515 .000322 SiA .042724 .340569 .276099 .005954 .006368 .010041 -.000484 .003389 -.000737 SiB .549302 .837437 .238780 .9840 .006294 .006299 .007849 -.001011 .002728 -.000871 AlB .549302 .837437 .238780 .0160 .006294 .006299 .007849 -.001011 .002728 -.000871 O1A .867648 .338212 .168308 .006543 .009127 .009852 .000145 .002670 -.000147 O2A .121580 .499459 .332112 .012883 .008605 .013443 -.003279 .006090 -.001640 O3A .104147 .260814 .575613 .008351 .023596 .021535 .000707 .004262 .015074 O1B .373643 .836670 .134859 .007149 .009144 .010226 .000213 .003312 -.000106 O2B .628662 .987816 .372068 .014679 .011356 .021234 -.005953 .010112 -.007620 O3B .604880 .709521 .481878 .007746 .019677 .013302 .000738 .003369 .007742