Forsterite Merli M, Oberti R, Caucia F, Ungaretti L American Mineralogist 86 (2001) 55-65 Determination of site population in olivine: Warnings on X-ray data treatment and refinement Sample: F-refinement using CRYSTALS on the 2491 reflections with Fo/sFo>1 Fo92Fa08 _database_code_amcsd 0002603 4.7579 10.2151 5.9890 90 90 90 Pbnm atom x y z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Mg1 0 0 0 .92 .00474 .00639 .00509 -.00014 -.00061 -.00110 Fe1 0 0 0 .08 .00474 .00639 .00509 -.00014 -.00061 -.00110 Mg2 .9901 .2776 .25 .93 .00618 .00432 .00596 .00017 0 0 Fe2 .9901 .2776 .25 .07 .00618 .00432 .00596 .00017 0 0 Si .4267 .0943 .25 .00309 .00374 .00447 .00011 0 0 O1 .7660 .0917 .25 .00361 .00651 .00605 .00013 0 0 O2 .2208 .4475 .25 .00551 .00385 .00647 -.00008 0 0 O3 .2781 .1633 .0333 .00545 .00620 .00573 .00027 -.00015 .00156