Roger Weller, geology instructor
[email protected] copyright 2010-R.Weller
brochantite-1
Morenci, Arizona
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. Each
starburst is about 1 centimeter
across.
brochantite
1358
Photo is copyright free only for
non-commercial educational uses.
Just credit photo to R.Weller/Cochise College.