Pyromorphite $Pb_{5}(PO_{4})_{3}Cl$ and vanadinite $Pb_{5}(VO_{4})_{3}Cl$ belong to the apatite supergroup. They are secondary minerals formed in the oxidation zones of lead ore deposits.
Minerals: pyromorphite $Pb_{5}(PO_{4})_{3}Cl$, mimetite $Pb_{5}(AsO_{4})_{3}Cl$ and vanadinite $Pb_{5}(VO_{4})_{3}Cl$ belong to the apatite supergroup. Commonly they form in hypergenic conditions. They are best known from the oxidation zones of lead ore deposits.
