Laurelite
Merlino S, Pasero M, Perchiazzi N, Kampf A R
American Mineralogist 81 (1996) 1277-1281
Laurelite: Its crystal structure and relationship to alpha-PbF2
Note: Re-examination of the crystal by H Yang and A Kampf showed that
it was twinned, and the partially occupied sites were relicts.
_database_code_amcsd 0018359
10.267 10.267 3.9844 90 90 120 P-6
atom     x     y  z  Uiso
Pb1  .5845 .6934 .5 .0164
Pb2  .8855 .5984  0 .0162
Pb3      0     0 .5 .0291
Cl1    1/3   2/3  0  .022
Cl2    2/3   1/3 .5  .022
F1    .048  .620 .5  .018
F2    .609  .570  0  .024
F3    .079  .868  0  .039
F4    .834  .729 .5  .021