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Entry № 121

Cyanotrichite

Hydrated Copper Aluminium Sulfate Hydroxide

A fibrous sky-blue tuft from the copper margins.

Chakra

Throat

Element

Water · Air

Zodiac

Pisces

Cyanotrichite

I. The Metaphysical Reading

How the stone has been held.

Cyanotrichite is worked with as a stone of gentle articulation, kept nearby during writing days, letters of apology and the small careful sentences that repair a relationship. Practitioners hold it as a reminder that softness carries further than volume.

Chakra
Throat
Element
Water · Air
Zodiac
Pisces
Keynote
A fibrous sky-blue tuft from the copper margins.

II. The Scientific Reading

What the lattice actually does.

Cyanotrichite is a rare hydrated copper aluminium sulfate that forms as delicate acicular tufts in the oxidised zones of copper deposits. Its name derives from Greek kyanos (blue) and thrix (hair), describing the mineral's fibrous, silky sky-blue crystals. Specimens are fragile and best displayed in enclosed cases.

Formula
Cu₄Al₂(SO₄)(OH)₁₂·2H₂O
System
Orthorhombic
Hardness
2 (Mohs)
Provenance
France (Cap Garonne), Namibia (Tsumeb), USA (Arizona – Grandview Mine), Kazakhstan

References & Sources

Independent mineralogical references used to verify the scientific details above.

Mineral Profile

Fact Sheet

Chemical Formula
Cu₄Al₂(SO₄)(OH)₁₂·2H₂O
Crystal System
Orthorhombic
Mohs Hardness
2 (Mohs)
Density
2.74 – 2.95 g/cm³
Refractive Index
1.588 – 1.655
Provenance
France (Cap Garonne), Namibia (Tsumeb), USA (Arizona – Grandview Mine), Kazakhstan
Color Origin
Sky-blue to azure acicular fibrous tufts on matrix

Related Crystals

Stones that share this lattice

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Danburite

A clear boron gemstone of pale-lit clarity.