Occurs in Pinal County.
Chemical Formula: Cu2Pb5(CO3)4(OH)6•2H2O
Specific Gravity: 4.1-4.3
Hardness: 2.5-3
Caledonite is a lead copper carbonate hydroxide mineral that forms as blue-green crystals or crusts. It is often found in the oxidation zones of lead-copper ore deposits.