Chesterite 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 0000689 18.614 45.306 5.297 90 90 90 A2_1ma atom x y z occ Biso MgMT1 .1267 .2675 .1461 .910 .38 FeMT1 .1267 .2675 .1461 .090 .38 MgMT2 .1224 .3013 .6413 .811 .82 FeMT2 .1224 .3013 .6413 .189 .82 MgMT3 .1264 .3357 .1458 .916 .30 FeMT3 .1264 .3357 .1458 .084 .30 MgMT4 .1243 .3715 .6423 .972 .33 FeMT4 .1243 .3715 .6423 .028 .33 FeMT5 .1233 .4044 .1414 .805 .41 MgMT5 .1233 .4044 .1414 .195 .41 MgMD1 .3771 .4654 .6443 .943 .30 FeMD1 .3771 .4654 .6443 .057 .30 MgMD2 .3749 .4296 .1489 .983 .33 FeMD2 .3749 .4296 .1489 .017 .33 MgMD3 .3718 .5 .1485 .786 .82 FeMD3 .3718 .5 .1485 .214 .82 MgMD4 .3752 .3963 .6457 .287 .41 FeMD4 .3752 .3963 .6457 .713 .41 SiT1A .2704 .2668 .8090 .36 SiT2A .2691 .3344 .8169 .44 SiT3A .2732 .3682 .3168 .43 SiT1B .4811 .2670 .5184 .49 SiT2B .4816 .3334 .5245 .35 SiT3B .4755 .3678 .0279 .43 SiD1A .2302 .4663 .3203 .44 SiD2A .2282 .4323 .8125 .43 SiD1B .5201 .4664 .9796 .35 SiD2B .5244 .4336 .4787 .43 OT1A .2990 .2499 .5616 -.03 OT2A .1823 .2672 .8112 -.06 OT3A .2976 .3002 .8001 .74 OT4A .1817 .3350 .8120 .69 OT5A .2992 .3490 .0750 .92 OT6A .3023 .3521 .5806 .91 OT7A .1836 .3694 .3130 .64 OT8A .3133 .3982 .3317 .37 OT1B .4523 .2468 .2777 .97 OT2B .5645 .2664 .5191 .28 OT3B .4503 .3001 .4841 .39 OT4B .5667 .3349 .5234 .51 OT5B .4497 .3551 .3010 .43 OT6B .4505 .3454 .7945 .69 OT7B .5599 .3688 .0326 .62 OT8B .4345 .3980 .9645 .68 OHTA .1835 .3005 .3086 .59 OHTB .5695 .3015 .0181 .44 OD1A .3154 .4647 .3101 .69 OD2A .3119 .4316 .8201 .64 OD4A .1858 .4004 .8281 .37 OD5A .2009 .4522 .5770 .92 OD6A .1974 .4476 .0804 .91 OD7A .2017 .5 .3064 .74 OD1B .4294 .4653 .9804 .51 OD2B .4357 .4309 .4738 .62 OD4B .5684 .4035 .5367 .68 OD5B .5513 .4457 .1995 .43 OD6B .5480 .4553 .7028 .69 OD7B .5442 .5 .0268 .39 OHDA .3187 .5 .8117 .59 OHDB .4337 .5 .4778 .44