Enstatite Ohashi Y Physics and Chemistry of Minerals 10 (1984) 217-229 Polysynthetically-twinned structures of enstatite and wollastonite Sample: OREN _database_code_amcsd 0007358 18.225 8.8128 5.180 90 90 90 Pbca atom x y z Biso MgM1 .37584 .65383 .8660 .37 MgM2 .37677 .48687 .3589 .57 SiA .27173 .34155 .0505 .28 SiB .47353 .33739 .7980 .27 O1A .18343 .3398 .0347 .38 O2A .31106 .5023 .0433 .47 O3A .30322 .2227 .8311 .46 O1B .56243 .3402 .8001 .39 O2B .43258 .4827 .6895 .46 O3B .44742 .1952 .6039 .41