American Mineralogist Crystal Structure Database

1 matching records for this search.

Davidite-(La)
Download hom/daviditela.pdf
Gatehouse B M, Grey I E, Kelly P R
Download am/vol64/AM64_1010.pdf
American Mineralogist 64 (1979) 1010-1017
The crystal structure of davidite
Locality: Pandora Prospect, Quijotoa Mts., Pima County, Arizona, USA
_database_code_amcsd 0000749
9.190 9.190 9.190 68.73 68.73 68.73 R-3
atom      x     y     z  occ Biso
La(0)     0     0     0 .540 1.17
Ca(0)     0     0     0 .200 1.17
Sr(0)     0     0     0 .090 1.17
La(1)    .5    .5    .5 .370 0.53
U(1)     .5    .5    .5 .330 0.53
Y(1)     .5    .5    .5 .300 0.53
Fe(2) .3090 .3090 .3090 .790 0.47
Mg(2) .3090 .3090 .3090 .120 0.47
Fe(3) .3474 .1269 .0184 .762 0.51
Ti(3) .3474 .1269 .0184 .112 0.51
Cr(3) .3474 .1269 .0184 .035 0.51
Ti(4) .3086 .7218 .1448      0.34
Ti(5) .4749 .0775 .6444      0.30
O(1)  .2999 .6300 .3765      0.54
O(2)  .1486 .2347 .9391      0.49
O(3)  .9192 .4574 .3025      0.43
O(4)  .1446 .5137 .9897      0.55
O(5)  .3891 .4869 .1345      0.52
O(6)  .7131 .2404 .0688      0.48
O(7)  .2134 .2134 .2134      0.59
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