Thursday, August 26, 2010

⤱ Smithsonite ⤱

Smithsonite is a zinc carbonate mineral with a formula of ZnCO3. It is common in the oxidised zone of zinc ore deposits. Smithsonite can occur as individual rhombohedral crystals, or more commonly, aggregates that form spherical groups.

This specimen is from the Kintore Open Cut, Broken Hill, New South Wales.