Akizuki M, Kudoh Y, Kuribayashi T
American Mineralogist 81 (1996) 1501-1506
Crystal structures of the {011}, {610}, and {010} growth sectors in brewsterite
Sample: {610} sector
_database_code_amcsd 0001844
6.779 17.530 7.750 89.98 94.49 90.13 P-1
atom x y z occ Biso
SiTa .3218 .0806 .8229 .75 .95
AlTa .3218 .0806 .8229 .25 .95
SiTa' .3205 .4185 .8223 .70 .95
AlTa' .3205 .4185 .8223 .30 .95
SiTb .4060 .0568 .2115 .65 1.09
AlTb .4060 .0568 .2115 .35 1.09
SiTb' .4055 .4432 .2105 .55 1.09
AlTb' .4055 .4432 .2105 .45 1.09
SiTc .5560 .1583 .5340 .50 1.01
AlTc .5560 .1583 .5340 .50 1.01
SiTc' .5542 .3421 .5333 .70 .90
AlTc' .5542 .3421 .5333 .30 .90
SiTd .9085 .0528 .6407 .94
SiTd' .9077 .4472 .6411 .90
Sr .24969 .25010 .17711 .40 1.60
BaM .24969 .25010 .17711 .55 1.60
KM .24969 .25010 .17711 .01 1.60
O1 .3506 .1045 .0288 1.5
O1' .3494 .3936 .0285 1.4
O2 .4234 .1243 .3592 2.0
O2' .4218 .3761 .3619 1.9
O3 .7855 .1216 .5463 1.8
O3' .7806 .3797 .5449 1.5
O4 .4497 .1406 .7160 1.8
O4' .4501 .3589 .7120 1.8
O5 .0848 .0900 .7637 2.0
O5' .0834 .4076 .7606 1.9
O6 .2250 .9967 .2412 2.6
O6' .2213 .5030 .2389 2.5
O7 .3854 .9912 .7948 1.6
O7' .3847 .5081 .7961 1.5
O8 0 0 .5 3.0
O8' 0 .5 .5 2.8
O9 .5715 .2512 .4991 2.4
Wat10 .0580 .2507 .4700 3.6
Wat11 .9285 .1461 .1506 4.9
Wat11' .9252 .3543 .1493 4.9
Wat12 .6031 .2490 .0238 4.9
Wat13 .0639 .2494 .8631 4.9
Cabella R, Lucchetti G, Palenzona A, Quartieri S, Vezzalini G
European Journal of Mineralogy 5 (1993) 353-360
First occurrence of a Ba-dominant brewsterite: structural features
_database_code_amcsd 0006480
6.790 17.581 7.735 90 94.50 90 P2_1/m
BaBA1 .2458 1/4 .1734 .82 1.3
NaBA1 .2458 1/4 .1734 .035 1.3
KBA1 .2458 1/4 .1734 .02 1.3
MgBA1 .2458 1/4 .1734 .04 1.3
BaBA2 .264 1/4 .043 .04 4.0
BaBA3 .211 1/4 .297 .04 4.0
AlTA .3215 .0803 .8230 .35 1.1
SiTA .3215 .0803 .8230 .65 1.1
AlTB .4070 .0566 .2116 .35 1.1
SiTB .4070 .0566 .2116 .65 1.1
AlTC .5534 .1581 .5349 .35 .9
SiTC .5534 .1581 .5349 .65 .9
SiTD .9067 .0526 .6412 1.1
O1 .3537 .1034 .028 1.3
O2 .426 .1222 .360 1.8
O3 .784 .1212 .547 1.7
O4 .446 .1403 .714 1.8
O5 .081 .0911 .765 2.5
O6 .227 .9969 .240 2.6
O7 .383 .9920 .795 1.7
O8 0 0 1/2 2.8
O9 .564 1/4 .501 2.1
Wat1 .051 1/4 .469 .96 3.2
Wat2 .920 .1414 .142 5.0
Wat3 .607 1/4 .022 .96 4.1
Wat4 .060 1/4 .854 .96 3.5
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