Occurs in Pinal County.
Chemical Formula: Cu3AsO4(OH)3
Specific Gravity: 4.1-4.3
Luster: Adamantine to vitreous
Hardness: 2.5-3
Clinoclase is a copper arsenate mineral that can be blue, green, or black in color. It typically forms as prismatic crystals or as crusts in oxidized copper ore deposits.
Next Pinal County mineral: Clinozoisite