Clinojimthompsonite Veblen D R, Burnham C W American Mineralogist 63 (1978) 1053-1073 New biopyriboles from Chester, Vermont: II. The crystal chemistry of jimthompsonite, clinojimthompsonite, and chesterite, and the amphibole-mica reaction _database_code_amcsd 0000688 9.874 27.240 5.316 90 109.5 90 C2/c atom x y z occ Biso Mg1 0 .0289 .25 .968 .14 Fe1 0 .0289 .25 .032 .14 Mg2 0 .0849 .75 .959 .16 Fe2 0 .0849 .75 .041 .16 Mg3 0 .1428 .25 .905 .18 Fe3 0 .1428 .25 .095 .18 Mg4 0 .2013 .75 .992 .15 Fe4 0 .2013 .75 .008 .15 Fe5 0 .2569 .25 .845 .43 Mg5 0 .2569 .25 .155 .43 Si1 .2909 .0277 .7656 .18 Si2 .2880 .1359 .7610 .24 Si3 .2971 .1962 .2630 .25 OH .1153 .0850 .1566 .23 O1 .3499 .0037 .5413 .42 O2 .1154 .0278 .6552 .47 O3 .3449 .0840 .8197 .33 O4 .1149 .1420 .6555 .48 O5 .3535 .1713 .0344 .59 O6 .3523 .1628 .5390 .76 O7 .1219 .1983 .1536 .45 O8 .3777 .2474 .3581 .48