American Mineralogist Crystal Structure Database

1 matching records for this search.

Chivruaiite
 
Men'shikov Y P, Krivovichev S V, Pakhomovsky Y A, Yakovenchuk V N,
Ivanyuk G Yu, Mikhailova J A, Armbruster T, Selivanova E A
Download am/vol91/AM91_922.pdf
American Mineralogist 91 (2006) 922-928
Chivruaiite, Ca4(Ti,Nb)5[(Si6O17)2|(OH,O)5]*13-14H2O, a new mineral
from hydrothermal veins of Khibiny and Lovozero alkaline massifs
Locality: Chivruai River valley, Kola peninsula, Russia
_database_code_amcsd 0004161
7.1918 23.166 6.9472 90 90 90 Cmmm
atom      x      y      z  occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Ca1       0 .13883  .2145  .35 .0320  .0165  .0247   .055      0      0   .014
Sr1       0 .13883  .2145 .025 .0320  .0165  .0247   .055      0      0   .014
Mn2     .25    .25     .5  .10  .024   .023   .037   .012   .008      0      0
Ca2     .25    .25     .5 .075  .024   .023   .037   .012   .008      0      0
K     -.856     .5     .5  .05  .120
Ba    -.856     .5     .5 .025  .120
Ti1     .25    .25      0  .78 .0172  .0224  .0156  .0137  .0067      0      0
Nb1     .25    .25      0  .22 .0172  .0224  .0156  .0137  .0067      0      0
Ti2     -.5     .5  .0319  .25  .020  .0171  .0106   .033      0      0      0
Si1       0 .33852 .27054      .0143  .0173  .0161  .0096      0      0 -.0002
Si2   .0962 .43567      0  .50 .0155  .0152  .0101  .0211 -.0007      0      0
O1        0     .5      0      .0235   .024   .011   .035      0      0      0
O2        0  .3454     .5      .0351   .068   .028   .010      0      0      0
O3        0 .21976      0 .696 .0192   .014   .016   .028      0      0      0
OH3       0 .21976      0 .304 .0192   .014   .016   .028      0      0      0
O4    .1851 .30653  .2009      .0341  .0191  .0407   .043  .0071  -.004  -.027
O5        0 .40438  .1893      .0350   .067  .0182   .020      0      0   .003
Wat6      0  .1986     .5       .072   .090   .071   .056      0      0      0
O7    .3179  .4387  .0420  .25  .024   .013   .020   .040  -.001   .000   .000
Wat8    -.5     .5   .414  .30  .064
O9      -.5     .5   .267 .174  .042
OH9     -.5     .5   .267 .076  .042
Wat10     0     .5     .5  .34   .13
Wat11   -.5  .5783     .5  .29  .080
Wat12  .413   .411      0  .12  .080
Wat13 -.340  .5686   .425  .19  .080
Wat14     0   .099   .166  .11  .080
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