Enstatite Gatta G D, Rinaldi R, Knight K S, Molin G, Artioli G Physics and Chemistry of Minerals 34 (2007) 185-200 High temperature structural and thermoelastic behaviour of mantle orthopyroxene: an in situ neutron powder diffraction study Sample: T = 1050 C _database_code_amcsd 0009064 18.4197 8.9449 5.2609 90 90 90 Pbca atom x y z occ Uiso MgM1 .3806 .6508 .8844 .924 .03678 FeM1 .3806 .6508 .8844 .066 .03678 MgM2 .3736 .4851 .3667 .896 .04140 FeM2 .3736 .4851 .3667 .084 .04140 SiA .2707 .3470 .0616 .01394 SiB .4746 .3391 .7768 .97 .01394 AlB .4746 .3391 .7768 .03 .01394 O1A .1847 .3419 .0484 .01583 O1B .5623 .3399 .7884 .01583 O2A .3105 .5052 .0453 .01583 O2B .4316 .4926 .7020 .01583 O3A .3024 .2343 -.1697 .01583 O3B .4501 .2047 .5813 .01583