AM_Nealite_1 Formula: Pb4 Fe As2 O8 Cl4 H4 Name: Nealite Unit cell: 6.548 10.243 5.587 96.2 89.6 97.7 , V=369.17 Space group: P-1 (2)

Pertlik F , Schnorrer G , Mineralogy and Petrology , 48 (1993) p.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