← The Atlas

Entry № 108

Chrysoprase

Nickel-Bearing Chalcedony

The apple-green chalcedony of new leaf and new heart.

Chakra

Heart

Element

Water

Zodiac

Libra · Taurus

Chrysoprase

I. The Metaphysical Reading

How the stone has been held.

Chrysoprase is worked with as a stone of tender renewal, kept nearby during heart repair, forgiveness practices and the first spring after a hard winter. Practitioners hold it as a reminder that the greenest leaves grow on the oldest branches.

Chakra
Heart
Element
Water
Zodiac
Libra · Taurus
Keynote
The apple-green chalcedony of new leaf and new heart.

II. The Scientific Reading

What the lattice actually does.

Chrysoprase is the most valuable variety of chalcedony, coloured apple-green by microscopic inclusions of nickel-bearing minerals such as kerolite or pimelite. It forms in the weathered crusts of nickel-rich serpentinites; Marlborough, Queensland is the world's premier source of gem-grade material.

Formula
SiO₂ with Ni-bearing inclusions
System
Trigonal (cryptocrystalline)
Hardness
6.5 – 7 (Mohs)
Provenance
Australia (Marlborough, Queensland), Tanzania, Poland, Brazil

References & Sources

Independent mineralogical references used to verify the scientific details above.

Mineral Profile

Fact Sheet

Chemical Formula
SiO₂ with Ni-bearing inclusions
Crystal System
Trigonal (cryptocrystalline)
Mohs Hardness
6.5 – 7 (Mohs)
Density
2.58 – 2.64 g/cm³
Refractive Index
1.530 – 1.540
Provenance
Australia (Marlborough, Queensland), Tanzania, Poland, Brazil
Color Origin
Translucent apple to mint green chalcedony

Related Crystals

Stones that share this lattice

Explore the full Atlas →

Next in the Atlas

Cinnabar

The scarlet ore that painted an empire.