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American Mineralogist Crystal Structure Database

1 matching records for this search.

Menezesite
  
Atencio D, Coutinho J M V, Doriguetto A C, Mascarenhas Y P, Ellena J, Ferrari V C
Download am/vol93/AM93_81.pdf 
American Mineralogist 93 (2008) 81-87
Menezesite, the first natural heteropolyniobate, from Cajati, Sao Paulo, Brazil:
description and crystal structure
Locality: Jacupiranga mine, Cajati county, Sao Paulo, Brazil
_database_code_amcsd 0004492
13.017 13.017 13.017 90 90 90 Im3
atom      x     y     z   occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
NbA       0 .1174 .2405 .7683 .036  .0365  .0356  .0371      0      0 -.0016
TaA       0 .1174 .2405 .0300 .036  .0365  .0356  .0371      0      0 -.0016
TiA       0 .1174 .2405 .1917 .036  .0365  .0356  .0371      0      0 -.0016
ZrB     .25   .25   .25 .6850 .038  .0383  .0383  .0383 -.0018 -.0018 -.0018
ThB     .25   .25   .25 .0775 .038  .0383  .0383  .0383 -.0018 -.0018 -.0018
TiB     .25   .25   .25 .2375 .038  .0383  .0383  .0383 -.0018 -.0018 -.0018
FeC       0    .5     0 .0766 .045   .055   .021   .061      0      0      0
MnC       0    .5     0 .0766 .045   .055   .021   .061      0      0      0
MgC       0    .5     0 .3116 .045   .055   .021   .061      0      0      0
BaD       0     0     0 .7399 .032  .0319  .0319  .0319      0      0      0
ThD       0     0     0 .2400 .032  .0319  .0319  .0319      0      0      0
BaE    .391  .256     0 .1225 .128   .060    .28   .045   .025      0      0
CaE    .391  .256     0 .0258 .128   .060    .28   .045   .025      0      0
KE     .391  .256     0 .0442 .128   .060    .28   .045   .025      0      0
O1    .2076 .3899 .3091       .030   .034   .030   .027   .000  -.004   .001
O2    .3402     0     0       .037   .030   .036   .045      0      0      0
O3    .1009     0 .1711       .027   .022   .024   .037      0   .001      0
Wat41 .3824 .3771     0    .5 .033
Wat42 .3581 .4175     0    .5 .027


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