Brochantite

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Rare
Brochantite specimen - rock identification

What is Brochantite?

Brochantite is an uncommon mineral that often boasts a deep green or blue-green hue. The mineral derives its unusual nomenclature from the surname of a French geologist, A.J.M. Brochant de Villiers. Though brochantite does not have any commercial or industrial uses, it may form impressive and colorful clusters of crystals - such specimens are prized by collectors.

Etymology & Origins

Formed in arid climates or in rapidly oxidizing copper sulfide deposits, it was named by Armand Lévy for his fellow Frenchman, geologist and mineralogist A. J. M. Brochant de Villiers.

Uses & Applications

Brochantite is a source of copper, though it does not occur in large amounts and is not a great ore for the metal. Brochantite is often nothing more than a corrosive material associated with bronze, and may actually damage bronze materials including statues and monuments.

Healing Properties

Brochantite is believed to heal pain by helping to reveal past traumas and restoring the body with positive healing energy. When used during meditation outdoors, it is said to connect the individual with nature, bringing a sense of peace and calm. Some believe it to be helpful for dealing with anxiety and depression.

Brochantite Market Value Calculator

Estimate the market value of Brochantite using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.

Preview only. Full pricing comps and valuation report in the app.

Brochantite Localities Map

See where Brochantite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.

Map preview
North ZoneCentral RidgeSouth Basin

Interactive map layers and collecting notes are available in the app.

Associated Chakras

Heart
Heart

Health & Safety Information

  • ⚠️Harm Reason: Brochantite dust is toxic because it contains heavy metals Copper.
  • ⚠️Brochantite is a common corrosion product on bronze sculptures located in urban areas, where atmospheric sulfur dioxide (a common pollutant) is present. Brochantitie forms mainly in exposed areas where weathering prevents accumulation copper ions and enhancement in the acidity of water films. In sheltered areas, the main corrosion product is antlerite.
  • ⚠️How to prevent the risks of Brochantite?

More Images

Brochantite specimen 2
© Robert M. Lavinsky
Brochantite specimen 3
© Robert M. Lavinsky
Brochantite specimen 4
© Robert M. Lavinsky

Quick Facts

Physical Properties

Color
Green, emerald green, green-black, light green
Hardness (Mohs)
3.5 - 4
Density
4.09 g/cm³
Streak
Pale green
Luster
Pearly, Vitreous
Crystal System
Monoclinic

Chemical Properties

Chemical Formula
Cu4(SO4)(OH)6
Elements
Cu, H, O, S

Also Known As

BrochantiteKoenigineKamareziteKonigiteWarringtonite
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