Wilkinsonite
Burt J B, Downs R T, Costin G
Acta Crystallographica E63 (2007) i122-i124
Single-crystal X-ray refinement of wilkinsonite, Na2Fe2+4Fe3+2Si6O20.
Locality: Warrumbungle Volcano, central New South Wales, Australia
_database_code_amcsd 0010476
10.3355 10.7847 8.9142 105.048 96.461 125.302 P-1
atom      x      y      z occ   Uiso U(1,1) U(2,2) U(3,3) U(1,2)  U(1,3) U(2,3)
Na1  .21036 .63125 .38834     .01308 .01321 .01409 .01308 .00920  .00318 .00594
Na2  .66109 .61279 .37244     .01558 .01086 .01320 .01675 .00442  .00296 .00733
Fe1       0      0     .5  .5 .00893 .00765 .00758 .01054 .00497  .00108 .00270
Fe2       0     .5      0  .5 .00792 .00626 .00853 .00711 .00417  .00190 .00219
Fe3  .31905 .85202 .17897     .00742 .00687 .00730 .00832 .00475  .00202 .00296
Fe4  .76728 .82004 .15109     .00742 .00679 .00778 .00715 .00459  .00230 .00234
Fe5  .09363 .93553 .05864     .01104 .00914 .01221 .01226 .00646  .00323 .00645
Fe6  .59487 .94132 .06557     .00708 .00779 .00659 .00733 .00437  .00305 .00366
Fe7  .99381 .73633 .26446     .00706 .00583 .00704 .00751 .00423  .00170 .00166
Si1  .47856 .23504 .33068     .00584 .00534 .00565 .00726 .00345  .00262 .00339
Si2  .98595 .23337 .34225     .00495 .00550 .00606 .00513 .00425  .00258 .00275
Si3  .79150 .33856 .24104     .00509 .00492 .00506 .00563 .00320  .00198 .00240
Si4  .72159 .66157 .77590     .00559 .00542 .00580 .00606 .00384  .00170 .00235
Si5  .64857 .94629 .44736     .00608 .00587 .00739 .00602 .00434  .00228 .00352
Si6  .35235 .55640 .04592     .00539 .00472 .00398 .00566 .00217  .00119 .00130
O1   .35818 .06889 .16487     .00790 .00911 .00842 .00716 .00623  .00296 .00253
O2   .86095 .06772 .17513     .00799 .00704 .00920 .00911 .00578  .00366 .00338
O3   .55580 .95318 .29564     .00787 .00448 .00930 .00941 .00387  .00272 .00433
O4   .01485 .93349 .27479     .00762 .00610 .00878 .00816 .00468  .00199 .00385
O5   .24029 .87626 .39573     .00945 .01098 .00804 .01162 .00728  .00554 .00284
O6   .75486 .88351 .39477     .00751 .00727 .00750 .00906 .00534  .00282 .00323
O7   .50726 .80265 .50559     .00809 .00560 .00841 .00810 .00317  .00228 .00380
O8   .95777 .78451 .49264     .00658 .00526 .00806 .00804 .00466  .00229 .00415
O9   .89916 .32134 .37379     .00739 .00841 .00935 .00840 .00721  .00298 .00450
O10  .59320 .66083 .64779     .00691 .00778 .00802 .00535 .00540  .00270 .00196
O11  .33560 .82749 .92558     .00777 .00503 .00576 .00752 .00210 -.00067 .00072
O12  .84312 .83177 .93604     .00788 .00332 .00772 .00847 .00214  .00076 .00189
O13  .52551 .71191 .03936     .00860 .00782 .00853 .00988 .00496  .00362 .00453
O14  .06659 .72728 .06868     .00815 .00958 .00689 .00795 .00491  .00272 .00382
O15  .24054 .60582 .11124     .00724 .00785 .00853 .00698 .00686  .00162 .00119
O16  .74816 .60204 .12861     .00747 .00584 .00878 .00792 .00526  .00065 .00255
O17  .59950 .50029 .81427     .00792 .00773 .00950 .01125 .00725  .00310 .00562
O18  .93448 .50527 .21937     .00944 .00638 .00991 .00954 .00388  .00306 .00382
O19  .83356 .63351 .68068     .00757 .00620 .00462 .00978 .00233  .00378 .00249
O20  .67365 .36341 .33607     .00814 .00798 .00711 .00905 .00485  .00347 .00240