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Entry № 297

Nuummite

Anthophyllite-gedrite rock

Iridescent fire of the oldest stones.

Chakra

Root · Third Eye

Element

Earth · Fire

Zodiac

Sagittarius · Capricorn

Nuummite

I. The Metaphysical Reading

How the stone has been held.

Nuummite is called the sorcerer's stone and is held as one of the older stones of shadow work, protection and self-mastery. Its inner iridescence is said to light the way through inner darkness rather than dispelling it.

Chakra
Root · Third Eye
Element
Earth · Fire
Zodiac
Sagittarius · Capricorn
Keynote
Iridescent fire of the oldest stones.

II. The Scientific Reading

What the lattice actually does.

Nuummite is a metamorphic rock made of intergrown anthophyllite and gedrite amphibole crystals that produce striking play-of-colour by light interference. It comes from the Nuuk region of Greenland and dates to around three billion years old, among the oldest rocks used as a gem material.

Formula
(Mg,Fe)₇Si₈O₂₂(OH)₂ intergrowth
System
Orthorhombic
Hardness
5.5 – 6 (Mohs)
Provenance
Greenland (Nuuk region)

References & Sources

Independent mineralogical references used to verify the scientific details above.

Mineral Profile

Fact Sheet

Chemical Formula
(Mg,Fe)₇Si₈O₂₂(OH)₂ intergrowth
Crystal System
Orthorhombic
Mohs Hardness
5.5 – 6 (Mohs)
Density
3.20 – 3.40 g/cm³
Refractive Index
1.640 – 1.680
Provenance
Greenland (Nuuk region)
Color Origin
Black with iridescent gold, blue and green flashes

Related Crystals

Stones that share this lattice

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Ocean Jasper

Concentric orbs at the edge of the sea.