Nealite
Pertlik F, Schnorrer G
Mineralogy and Petrology 48 (1993) 193-200
A re-appraisal of the chemical formula of nealite, Pb4Fe(AsO3)2Cl4*2H2O,
on the basis of a crystal structure determination
Locality: Laurion, Greece
_database_code_amcsd 0014634
6.548 10.243 5.587 96.2 89.6 97.7 P-1
atom     x     y     z Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb1  .2014 .4519 .2450       .0185  .0343  .0174  .0014 -.0046  .0019
Pb2  .0689 .8204 .2842       .0180  .0343  .1527 -.0006  .0231 -.0013
Fe      .5     0     0       .0133  .0223  .0347 -.0034 -.0010  .0035
As   .3059 .6849 .7892       .0178  .0310  .0232 -.0008 -.0013  .0005
O1    .131  .634  .533 .027
O2    .122  .643  .039 .031
O3    .276  .856  .836 .048
Cl1   .352  .368  .723 .030
Cl2   .203  .128  .171 .034
Wat4  .460  .902  .314 .043