Haiweeite
Burns P C
The Canadian Mineralogist 39 (2001) 1153-1160
A new uranyl silicate sheet in the structure of haiweeite and comparison to
other uranyl silicates
_database_code_amcsd 0005732
7.125 17.937 18.342 90 90 90 Cmcm
atom        x      y     z occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
U(1)        0 .39036   1/4     .0126  .0077  .0085  .0215      0      0      0
U(2)      1/2 .28612   1/4     .0149  .0089  .0091  .0266      0      0      0
Si(1)       0  .2148   1/4     .0169  .0095  .0011  .0399      0      0      0
Si(2)     1/2  .4608   1/4     .0230  .0069  .0093  .0527      0      0      0
Si(3)   .1079  .0871 .3524  .5 .0161  .0088  .0170  .0224  .0017  .0016  .0001
Si(4)       0  .5858 .2744  .5 .0125  .0090  .0063  .0222      0      0 -.0007
Ca(1)       0  .3887 .4850  .5 .0404  .0726  .0270  .0219      0      0 -.0033
O(1)        0  .1606 .3212     .0285  .0274  .0217  .0365      0      0  .0143
O(2)      1/2  .5154 .3199     .0360  .0203  .0188  .0690      0      0 -.0072
O(3)     .324  .4049   1/4     .0272  .0090  .0136  .0591 -.0037      0      0
O(4)     .177  .2703   1/4     .0258  .0079  .0123  .0573 -.0026      0      0
O(5)        0  .3899 .3470     .0477  .0371  .0840  .0220      0      0 -.0177
O(6)        0   .509  .274  .5 .0295  .0312  .0421  .0153      0      0  .0122
O(7)      1/2  .2873 .3485     .0409  .0286  .0715  .0226      0      0  .0139
O(8)      1/2  .1623 .2727  .5 .0126
O(9)    -.176  .5845 .3316  .5 .0285  .0098  .0339  .0417 -.0045  .0087  .0005
OH(10)   .083   .088 .4390  .5 .0428  .0241  .0746  .0297  .0064  .0127 -.0062
Wat(11)  .172   .092  .551 .25 .0633  .0686  .1108  .0105 -.0791 -.0110  .0164
Wat(12)  .102   .271  .453 .25 .0929  .2047  .0427  .0314  .0760  .0017 -.0155
Wat(13) -.107   .520  .422 .25 .0474  .0510  .0353  .0557 -.0054  .0255 -.0166