← The Atlas

Entry № 064

Blue Halite

Sodium Chloride

Salt cube coloured by long-buried light.

Chakra

Throat · Third Eye

Element

Water

Zodiac

Pisces · Aquarius

Blue Halite

I. The Metaphysical Reading

How the stone has been held.

Blue halite is worked with as a stone of cleansing and quiet mental clarity, kept in a sealed jar rather than in the open. Practitioners speak of it as a reminder that some difficult truths only surface after very long time underground.

Chakra
Throat · Third Eye
Element
Water
Zodiac
Pisces · Aquarius
Keynote
Salt cube coloured by long-buried light.

II. The Scientific Reading

What the lattice actually does.

Blue halite is a variety of common rock salt whose extraordinary colour comes from colloidal sodium metal formed within the crystal lattice by natural radiation from surrounding potassium-40 in potash beds. The colour is stable while the salt is buried but fades within weeks in humid air as the sodium colloids oxidise. The best-known material is mined from the Carlsbad potash deposits of southern New Mexico and from the Zechstein evaporites of central Europe.

Formula
NaCl
System
Cubic
Hardness
2 – 2.5 (Mohs)
Provenance
USA (New Mexico - Carlsbad), Germany, Poland, Russia

References & Sources

Independent mineralogical references used to verify the scientific details above.

Mineral Profile

Fact Sheet

Chemical Formula
NaCl
Crystal System
Cubic
Mohs Hardness
2 – 2.5 (Mohs)
Density
2.16 g/cm³
Refractive Index
1.544
Provenance
USA (New Mexico - Carlsbad), Germany, Poland, Russia
Color Origin
Cornflower to indigo blue in cubic crystals; unstable to moisture

Related Crystals

Stones that share this lattice

Explore the full Atlas →

Next in the Atlas

Blue Jay Sapphire

The old blue stone of vows and verdicts.