American Mineralogist Crystal Structure Database

1 matching records for this search.

Gerenite-(Y)
 
Groat L A
Download cm/vol36/CM36_801.pdf
The Canadian Mineralogist 36 (1998) 801-808
The crystal structure of gerenite-(Y), (Ca,Na)2(Y,REE)3Si6O18.2H2O,
a cyclosilicate mineral
_database_code_amcsd 0005545
9.257 9.684 5.520 97.36 100.52 116.57 P-1
atom     x     y     z U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Si1  .3647 .2508 .3825  .0139  .0138  .0077  .0084  .0034  .0032
Si2  .1195 .3680 .1021  .0111  .0132  .0071  .0064  .0031  .0002
Si3  .7595 .1251 .7688  .0134  .0174  .0070  .0097  .0034  .0016
Y1      .5    .5     0  .0314  .0238  .0109  .0217 -.0093 -.0063
Y2   .7814 .3642 .3171  .0103  .0180  .0078  .0075  .0021  .0018
Ca   .6211 .9329 .1730  .0167  .0178  .0195  .0095  .0044  .0046
O1   .6699 .1554 .9775  .0161  .0180  .0181  .0083  .0041 -.0012
O2   .5981 .7088 .3189  .0402  .0299  .0040  .0164 -.0005  .0009
O3   .5221 .3437 .2696  .0242  .0265  .0446  .0165  .0231  .0215
O4   .9611 .2183 .8895  .0139  .0260  .0139  .0058 -.0029 -.0088
O5   .7600 .5145 .0394  .0313  .0250  .0202  .0132  .0169  .0099
O6   .7081 .1625 .5040  .0172  .0187  .0082  .0044 -.0024  .0023
O7   .0536 .4444 .3062  .0137  .0233  .0126  .0108  .0063  .0020
O8   .2937 .0644 .2760  .0227  .0121  .0192  .0072  .0003 -.0044
O9   .2238 .2935 .2480  .0510  .0482  .0362  .0449 -.0137 -.0057
Wat  .9081 .9984 .2675  .0415  .0872  .0451  .0318  .0103  .0169
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