Image: <bdi><a href="https://www.wikidata.org/wiki/Q56247090" class="extiw" title="d:Q56247090"><span title="mineral collector and dealer">Robert M. Lavinsky</span></a></bdi> (CC BY-SA 3.0)
monoclinicuncommonsulfates
Brochantite
Cu₄(SO₄)(OH)₆
This image displays a vibrant emerald-green cluster of acicular (needle-like) brochantite crystals, forming a radiating aggregate.
Brochantite Physical Properties
Mohs Hardness
3.5Crystal System
monoclinicLuster
vitreousStreak Color
pale greenCleavage
perfect on {100}Fracture
conchoidalSpecific Gravity
3.9Colors
emerald green, dark green, bluish-greenTransparency
transparentType Locality
Bingham, Hansonburg District, Socorro County, New Mexico, USAMineral Group
sulfatesUses
collector, minor copper oreAssociated Minerals
malachite, azurite, chrysocolla, cupriteRarity
uncommonGeological Context
Brochantite is a secondary copper sulfate mineral that forms in the oxidized zones of copper sulfide deposits, particularly in arid or semi-arid regions. It results from the alteration of primary copper minerals.
