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Entry № 009

Aegirine

Sodium Iron Silicate

The dark blade - a stone of clean severance.

Chakra

Root · Solar Plexus

Element

Fire · Earth

Zodiac

Pisces

Aegirine

I. The Metaphysical Reading

How the stone has been held.

Named for Ægir, Norse deity of the sea. Traditional lithotherapy treats aegirine as a discriminating stone - one that helps release outside influence and restores personal integrity to the will. It is often paired with clearer crystals to sharpen intent without introducing new distraction.

Chakra
Root · Solar Plexus
Element
Fire · Earth
Zodiac
Pisces
Keynote
The dark blade - a stone of clean severance.

II. The Scientific Reading

What the lattice actually does.

Aegirine is the sodic end-member of the clinopyroxene series, forming in silica-undersaturated alkaline igneous rocks such as nepheline syenites and phonolites. Its steep prismatic habit and high refractive index reflect a densely packed structure dominated by Fe³⁺ in the M1 octahedral site. Type locality: the Rundemyr mine, Norway, 1835.

Formula
NaFe³⁺Si₂O₆
System
Monoclinic (clinopyroxene)
Hardness
5 – 6 (Mohs)
Provenance
Russia (Kola Peninsula), Greenland, Norway, Malawi, Canada

References & Sources

Independent mineralogical references used to verify the scientific details above.

Mineral Profile

Fact Sheet

Chemical Formula
NaFe³⁺Si₂O₆
Crystal System
Monoclinic (clinopyroxene)
Mohs Hardness
5 – 6 (Mohs)
Density
3.50 – 3.60 g/cm³
Refractive Index
1.720 – 1.835
Provenance
Russia (Kola Peninsula), Greenland, Norway, Malawi, Canada
Color Origin
Dark green to brownish-black - ferric iron (Fe³⁺)

Related Crystals

Stones that share this lattice

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