Brochantite is not uncommon as a dump-formed secondary species, most notably from outcrop workings on Pen Dylife where, it occurs as rounded tabular microcrystals encrusting weathered chalcopyrite-bearing veinstone (Rust & Rust, 1987).

Where is Brochantite found?

The mineral is found in a number of locations around the world, notably the southwestern United States (especially Arizona), Serifos in Greece and Chile. Brochantite is a common corrosion product on bronze sculptures located in urban areas, where atmospheric sulfur dioxide (a common pollutant) is present.

How is Brochantite formed?

Description: Brochantite is a mineral formed by weathering of other copper minerals such as chalcopyrite.