Krohnkite
Dahlman B
Arkiv for Mineralogi och Geologi 1 (1952) 339-366
The crystal structures of krohnkite, CuNa2(SO4)2*2H2O and brandtite, MnCa2(AsO4)2*2H2O
Locality: Chuquicamata, Chile
_database_code_amcsd 0012043
5.78 12.58 5.48 90 71.5 90 P2_1/c
atom    x    y    z
Cu      0    0    0
Na   .427 .126 .237
S    .766 .118 .578
O1      0 .165  .48
O2   .733 .049 .803
O3   .733 .049 .358
O4   .571 .196 .622
Wat  .173  .13 .987