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Entry № 079

Brochantite

Basic Copper Sulphate

Green copper sprays from the desert workings.

Chakra

Heart

Element

Earth · Water

Zodiac

Taurus · Virgo

Brochantite

I. The Metaphysical Reading

How the stone has been held.

Brochantite is worked with as a stone of restorative growth in places long worked by human hands. Practitioners keep it nearby when tending a garden, a business or a relationship that has been overused and is being brought back into balance.

Chakra
Heart
Element
Earth · Water
Zodiac
Taurus · Virgo
Keynote
Green copper sprays from the desert workings.

II. The Scientific Reading

What the lattice actually does.

Brochantite is a hydrous copper sulphate that forms as a secondary mineral in the oxidised zones of copper deposits, particularly in arid climates where sulphate solutions are stable. It occurs as brilliant green acicular crystals in radiating sprays, most famously at the Chuquicamata and Collahuasi mines in the Atacama Desert of Chile, at Tsumeb in Namibia and at Bisbee in Arizona.

Formula
Cu₄(SO₄)(OH)₆
System
Monoclinic
Hardness
3.5 – 4 (Mohs)
Provenance
Chile, Namibia, USA (Arizona), Russia (Urals), Mexico

References & Sources

Independent mineralogical references used to verify the scientific details above.

Mineral Profile

Fact Sheet

Chemical Formula
Cu₄(SO₄)(OH)₆
Crystal System
Monoclinic
Mohs Hardness
3.5 – 4 (Mohs)
Density
3.97 g/cm³
Refractive Index
1.728 – 1.800
Provenance
Chile, Namibia, USA (Arizona), Russia (Urals), Mexico
Color Origin
Emerald to deep green acicular sprays and crusts

Related Crystals

Stones that share this lattice

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Next in the Atlas

Bronzite

The polite refusal in stone.