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 = 1075 C _database_code_amcsd 0009063 18.4244 8.9481 5.2639 90 90 90 Pbca atom x y z occ Uiso MgM1 .3807 .6519 .8876 .924 .03851 FeM1 .3807 .6519 .8876 .066 .03851 MgM2 .3740 .4848 .3645 .896 .04247 FeM2 .3740 .4848 .3645 .084 .04247 SiA .2712 .3473 .0599 .01460 SiB .4751 .3385 .7767 .97 .01460 AlB .4751 .3385 .7767 .03 .01460 O1A .1851 .3403 .0497 .01656 O1B .5626 .3420 .7869 .01656 O2A .3112 .5046 .0470 .01656 O2B .4321 .4929 .7024 .01656 O3A .3025 .2344 -.1702 .01656 O3B .4499 .2054 .5800 .01656