|
Weeksite |
 |
Fejfarova K, Plasil J, Yang H, Cejka J, Dusek M, Downs R T, Barkley M C, Skoda R |
|
American Mineralogist 97 (2012) 750-754 |
|
Revision of the crystal structure and chemical formula of weeksite, |
|
K2(UO2)2(Si5O13)*4H2O |
|
Locality: Anderson mine, Arizona, USA |
|
_database_code_amcsd 0018760 |
|
14.1957 14.2291 9.6305 90 111.578 90 C2/m |
|
atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) |
|
U1 .099331 .246786 .89678 .01189 .00807 .01867 .00959 .00057 .00403 .00072 |
|
K1 -.0707 0 .8602 .951 .0369 .0280 .0310 .057 0 .0224 0 |
|
K2 .2460 0 .8433 .930 .054 .058 .040 .089 0 .055 0 |
|
Si1 0 .3068 .5 .0166 .0133 .0244 .0121 0 .0046 0 |
|
Si2 .18748 .24984 .2495 .0116 .0094 .0180 .0080 .0011 .0038 -.0010 |
|
Si3 .29855 .10998 .5004 .0184 .0220 .0156 .0192 -.0011 .0095 .0000 |
|
O1 .4105 .1224 .4996 .033 .020 .030 .052 -.005 .018 -.002 |
|
O2 .0712 .2440 .1370 .023 .006 .055 .007 .000 .001 -.001 |
|
O3 .2472 .2551 .1367 .024 .009 .055 .009 .000 .005 -.001 |
|
O4 .0366 .2437 .6473 .023 .024 .037 .008 .003 .006 .006 |
|
O5 .2162 .1560 .3546 .027 .028 .026 .021 -.001 .002 .011 |
|
O6 .2705 0 .4998 .022 .029 .012 .029 0 .013 0 |
|
O7 .2892 .1573 .6467 .026 .036 .018 .027 -.003 .016 -.007 |
|
O8 .1020 .1201 .9055 .029 .035 .019 .040 -.001 .021 .001 |
|
O9 .0990 .3727 .8972 .032 .036 .020 .042 -.003 .016 -.003 |
|
Wat10 .4310 0 .8411 .053 .033 .040 .073 0 .005 0 |
|
Wat11 -.2624 0 .8441 .98 .059 .059 .052 .073 0 .034 0 |
|
Wat12 0 0 .5 .72 .036 |
|
Wat13 0 -.079 .5 .259 .036 |
|
Wat14 -.0464 -.0614 .602 .281 .036 |
|
Wat15 -.0917 -.0636 .398 .264 .036 |
|
Wat16 -.445 0 .702 .24 .024 |
|
|
| Download AMC data (View Text File)
Download CIF data (View Text File)
Download diffraction data (View Text File)
View JMOL 3-D Structure (permalink)
|
| |
