Entry № 107
Chrysocolla
Hydrated Copper Silicate
The turquoise-blue voice of copper country.
Chakra
Throat · Heart
Element
Water
Zodiac
Gemini · Taurus

I. The Metaphysical Reading
How the stone has been held.
Chrysocolla is worked with as a stone of truthful speech, kept nearby during difficult conversations, teaching and community work. Practitioners hold it as a reminder that a clear voice is a form of tenderness, not a form of force.
- Chakra
- Throat · Heart
- Element
- Water
- Zodiac
- Gemini · Taurus
- Keynote
- The turquoise-blue voice of copper country.
II. The Scientific Reading
What the lattice actually does.
Chrysocolla is a hydrated copper silicate that forms in the oxidised zones of copper deposits, often intergrown with malachite, azurite and quartz. Pure chrysocolla is soft and porous; the gem material sold as 'gem silica' is chrysocolla naturally impregnated with chalcedony, which raises its hardness to around 7.
- Formula
- (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O
- System
- Amorphous to microcrystalline (orthorhombic)
- Hardness
- 2.5 – 3.5 (harder when silicified)
- Provenance
- USA (Arizona), Chile, Peru, DR Congo, Israel (Eilat Stone)
References & Sources
Independent mineralogical references used to verify the scientific details above.
Mineral Profile
Fact Sheet
- Chemical Formula
- (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O
- Crystal System
- Amorphous to microcrystalline (orthorhombic)
- Mohs Hardness
- 2.5 – 3.5 (harder when silicified)
- Density
- 1.9 – 2.4 g/cm³
- Refractive Index
- 1.575 – 1.635
- Provenance
- USA (Arizona), Chile, Peru, DR Congo, Israel (Eilat Stone)
- Color Origin
- Vivid turquoise to cyan blue-green botryoidal crust
Related Crystals
Stones that share this lattice
Next in the Atlas
Chrysoprase
The apple-green chalcedony of new leaf and new heart.




