Occurs in Pinal County.
Chemical Formula: Cu5(PO4)2(OH)4
Specific Gravity: 4.1-4.3
Hardness: 4-4.5
Pseudomalachite is a copper phosphate hydroxide mineral that often forms as dark green to blackish-green botryoidal masses or crusts. It is found in the oxidation zones of copper deposits.
Next Pinal County mineral: Pyrargyrite