Acta Cryst. (2014). C70, 160-164 [ doi:10.1107/S2053229614000679 ]
Synopsis: For KNi0.93FeII0.07FeIII(PO4)2, the partial substitution of Ni by Fe to give a mixed Ni/Fe site is accompanied by the redistribution of K between its original site and a newly populated position.
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