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Entry № 044

Black Jade

Nephrite (Calcium Magnesium Iron Silicate)

The dense stone that will not be pushed.

Chakra

Root

Element

Earth

Zodiac

Capricorn · Scorpio

Black Jade

I. The Metaphysical Reading

How the stone has been held.

Black jade is worked with as a protective stone for practitioners in exposed public work or draining environments. Its extraordinary toughness is read as a reminder that steadiness need not be loud, and that a boundary held quietly can outlast one enforced sharply.

Chakra
Root
Element
Earth
Zodiac
Capricorn · Scorpio
Keynote
The dense stone that will not be pushed.

II. The Scientific Reading

What the lattice actually does.

Black jade is a variety of nephrite, one of the two mineral species (with jadeite) traditionally called jade. Its colour comes from finely distributed graphite and magnetite within an interlocking mass of amphibole fibres, and this fibrous structure gives nephrite its exceptional toughness - it is among the hardest natural materials to fracture. The Cowell field in South Australia is the principal modern source of true black nephrite jade.

Formula
Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂
System
Monoclinic (interlocking fibrous aggregate)
Hardness
6 – 6.5 (Mohs)
Provenance
Australia (Cowell), USA (Wyoming), Russia (Siberia), Guatemala

References & Sources

Independent mineralogical references used to verify the scientific details above.

Mineral Profile

Fact Sheet

Chemical Formula
Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂
Crystal System
Monoclinic (interlocking fibrous aggregate)
Mohs Hardness
6 – 6.5 (Mohs)
Density
2.90 – 3.03 g/cm³
Refractive Index
1.600 – 1.641
Provenance
Australia (Cowell), USA (Wyoming), Russia (Siberia), Guatemala
Color Origin
Dense black with a soft waxy polish, opaque

Related Crystals

Stones that share this lattice

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Black Kyanite

The fan that sweeps a room clean.