Entry № 108
Chrysoprase
Nickel-Bearing Chalcedony
The apple-green chalcedony of new leaf and new heart.
Chakra
Heart
Element
Water
Zodiac
Libra · Taurus

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
Next in the Atlas
Cinnabar
The scarlet ore that painted an empire.




