Entry № 044
Black Jade
Nephrite (Calcium Magnesium Iron Silicate)
The dense stone that will not be pushed.
Chakra
Root
Element
Earth
Zodiac
Capricorn · Scorpio

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
Next in the Atlas
Black Kyanite
The fan that sweeps a room clean.




