Linarite

Linarite is a rare blue sulfate mineral. The mineral, commonly formed after the oxidation of sulfides, usually occurs in deep blue crusts atop crystals and matrixes.

Uses

Linarite is primarily valued as a collectible mineral, but it has also served as an ore for copper when abundant.

Notable Localities

Linarite was named after where it was first discovered – Linares, Spain. Fine specimens of Linarite have been found worldwide, including in Sardinia, Greece, Cumbria Falls, UK, and the Chuquicamata Mine of Chile. Notable American localities include the Bisbee copper mines, Mammoth-St. Anthony Mine and Grand Reef Mine in Arizona, as well as the Blanchard Mine of Bingham, New Mexico, and Cerro Gordo and Blue Bell claims of California.

Properties
Chemical FormulaPbCu[(OH)2|SO4]
Hardness2.5-2.5
Crystal SystemMonoclinic
Mineral ClassSulfates
LusterVitreous, Sub-adamantine, Dull