Tags: Chemical Substance, Mineral.
Parsonsite is a lead uranium phosphate mineral with chemical formula: Pb2(UO2)(PO4)2·2H2O. Parsonsite contains about 45% lead and 25% uranium. It forms elongated lathlike monoclinic crystals radial spherulites encrustations and powdery aggregates. It is of a light yellow colour. It has a Mohs hardness of 2.5-3 and a specific gravity of 5.72 – 6.29.It was first described in 1923 for an occurrence in the Shinkolobwe Mine Katanga Copper Crescent Democratic Republic of Congo.