American Mineralogist Crystal Structure Database

1 matching records for this search.

Holtite
Download hom/holtite.pdf
Hoskins B F, Mumme W G, Pryce M W
Mineralogical Magazine 53 (1989) 457-463
Holtite, (Si2.25Sb0.75)B[Al6(Al0.43 Ta0.27[]0.30)O15(O,OH)2.25]:
crystal structure and crystal chemistry
Locality: Greenbrushes, Australia
_database_code_amcsd 0014489
4.6914 11.896 20.383 90 90 90 Pnma
atom     x     y     z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Al1  .4052   .75 .2499 .43  .0136  .0024  .0025      0 -.0004      0
Ta1  .4052   .75 .2499 .27  .0136  .0024  .0025      0 -.0004      0
Al2  .5571 .6107 .4735      .0045  .0044  .0048 -.0004 -.0003  .0006
Al3  .0588 .4899 .4315      .0043  .0052  .0047 -.0002  .0000  .0003
Al4  .0603 .3593 .2902      .0082  .0071  .0085  .0000 -.0010  .0013
Si1  .0878   .75 .4077 .75  .0037  .0036  .0058      0  .0001      0
Sb1  .1150   .75 .3823 .25  .0040  .0036  .0052      0  .0007      0
Si2  .5890 .5216 .3294 .75  .0035  .0078  .0033  .0013 -.0005 -.0019
Sb2  .6117 .5632 .3164 .25  .0043  .0032  .0028 -.0005  .0009  .0011
B    .2252   .25 .4158      .0029  .0026  .0068      0 -.0019      0
O1   .3798   .75 .4572      .0064  .0042  .0084      0 -.0008      0
O2   .1618   .75 .3305 .75  .0133  .0116  .0079      0  .0009      0
O3   .8906 .6377 .4243      .0052  .0060  .0073  .0004  .0016  .0006
O4   .4016 .4348 .2815      .0062  .0063  .0076 -.0002  .0011 -.0011
O5   .3922 .5511 .3942      .0051  .0074  .0057 -.0015  .0011  .0003
O6   .8837 .4504 .3518      .0089  .0077  .0062  .0009 -.0012 -.0007
O7   .6608 .6333 .2886 .75  .0109  .0098  .0101  .0001 -.0016  .0028
O8   .1729   .25 .3499      .0105  .0082  .0055      0 -.0005      0
O9   .2531 .3508 .4477      .0083  .0053  .0055  .0012  .0018 -.0004
O10  .7620   .25 .2734      .0070  .0058  .0141      0 -.0006      0
O11  .7498 .4670 .4883      .0046  .0056  .0062 -.0009 -.0003 -.0008
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