Occurs in Pinal County.
Chemical Formula: Pb4(CO3)2(SO4)(OH)2
Specific Gravity: 6.3-6.4
Luster: Adamantine to resinous
Hardness: 2.5-3
Leadhillite is a lead carbonate sulfate hydroxide mineral that often forms as colorless to white crystals or crusts. It is found in the oxidized zones of lead ore deposits.
Next Pinal County mineral: Lepidocrocite