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Formula: Pb2(U6+O2)(PO4)2
Phosphate, uranyl mineral, forms a series with
hallimondite
Specific gravity: 5.37
Hardness: 2½ to 3
Streak: White
Colour: Pale citron yellow
Luminescence: Not fluorescent
Solubility: Soluble in acids
Strongly RADIOACTIVE
Environments
Sedimentary environments
Hydrothermal environments
Parsonsite occurs as a secondary mineral in the oxidised
zone of some hydrothermal uranium deposits
(HOM).
Localities
At the type locality, the Shinkolobwe mine, Shinkolobwe, Kambove District, Haut-Katanga, DR Congo, parsonsite occurs
with torbernite,
kasolite and dewindtite
(Dana).
Parsonsite from Shinkolobwe - Image
At Lachaux, Thiers, Puy-de-Dôme, Auvergne-Rhône-Alpes, France, parsonsite occurs with
pyromorphite,
torbernite and autunite
(HOM).
Parsonsite from Lachaux - Image
At Wölsendorf, Schwarzach bei Nabburg, Schwandorf District, Upper Palatinate, Bavaria, Germany, parsonsite occurs
with uranocircite
(Dana) and metauranocircite
(Lauf2).
In the Huachuca Mountains, Cochise County, Arizona, USA, parsonsite occurs as crusts on
quartz
(Dana).
At the Ruggles Mine, Grafton, Grafton county, New Hampshire, USA, parsonsite occurs with
autunite and
phosphuranylite
(Dana), on fracture surfaces near uraninite and
gummite masses
(Lauf2).
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