Roger Weller, geology instructor
email@example.com copyright 2010-R.Weller
Brochantite is Cu4(OH)6SO4
Brochantite is a basic sulfate of copper. It is often mistaken for the mineral malachite,
but brochantite has a touch more blue to its green color than malachite. This
specimen came from the open pit in Morenci, Arizona. The rock split in half along
a pre-existing crack where the starburst patterns of brochantite had formed.
The starburst is about 1 centimeter across.
Photo is copyright freeonly for non-commercial educational uses.
Just credit photo to R.Weller/Cochise College.