Weberite
Giuseppetti G, Tadini C
Tschermaks Mineralogische und Petrographische Mitteilungen 25 (1978) 57-62
Re-examination of the crystal structure of weberite
Locality: Ivigtut, Greenland
_database_code_amcsd 0015669
7.060 10.000 7.303 90 90 90 Imma
atom     x     y     z Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
Na1      0     0     0 1.72  .0077  .0069  .0041      0      0  .0027
Na2    .25   .25   .75 2.25  .0055  .0036  .0197      0 -.0018      0
Mg1    .25   .25   .25  .45  .0017  .0013  .0023      0  .0004      0
Al1      0     0    .5  .31  .0015  .0009  .0013      0      0  .0005
F1       0   .25 .1362  .78  .0011  .0033  .0038      0      0      0
F2       0 .4145 .7205  .90  .0059  .0026  .0022      0      0  .0002
F3   .1836 .3873 .4301  .87  .0034  .0022  .0050  .0008  .0005 -.0016