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Entry № 258

Lapis Lazuli

Rock: lazurite + calcite + pyrite

The stone of starry midnight.

Chakra

Throat · Third Eye

Element

Water

Zodiac

Sagittarius · Libra

Lapis Lazuli

I. The Metaphysical Reading

How the stone has been held.

One of the oldest known gemstones, lapis lazuli was ground into ultramarine pigment and placed in the graves of royalty. It is associated with truth, sovereignty, and the courage to speak from the deepest self. The golden pyrite inclusions are read as flecks of inner starlight.

Chakra
Throat · Third Eye
Element
Water
Zodiac
Sagittarius · Libra
Keynote
The stone of starry midnight.

II. The Scientific Reading

What the lattice actually does.

Lapis lazuli is not a single mineral but a metamorphic rock composed chiefly of the deep-blue feldspathoid lazurite, with variable calcite and pyrite. Its color comes from sulfur radical anions (S₃⁻) within the lazurite structure. The finest material, sourced from the Sar-e-Sang mines of Afghanistan for more than 6,000 years, was once more valuable than gold.

Formula
(Na,Ca)₈(AlSiO₄)₆(S,SO₄,Cl)₁₋₂
System
Isometric (lazurite component)
Hardness
5 – 5.5 (Mohs)
Provenance
Afghanistan, Chile, Russia, Myanmar

References & Sources

Independent mineralogical references used to verify the scientific details above.

Mineral Profile

Fact Sheet

Chemical Formula
(Na,Ca)₈(AlSiO₄)₆(S,SO₄,Cl)₁₋₂
Crystal System
Isometric (lazurite component)
Mohs Hardness
5 – 5.5 (Mohs)
Density
2.7 – 2.9 g/cm³
Refractive Index
1.50 – 1.55
Provenance
Afghanistan, Chile, Russia, Myanmar
Color Origin
Deep blue from S₃⁻ radicals; pyrite golden; calcite white

Related Crystals

Stones that share this lattice

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