Hackmanite

A variety of Sodalite

What is Hackmanite?

Hackmanite is a sodalite variety first discovered in Greenland but now mined in several localities around the world. The material is pale to deep purple when first mined, but it fades upon exposure to sunlight. This change can occur in seconds, but the original color can be obtained again when the material is placed into a dark place. Hackmanite is used as a collector's gem, usually cut into slices or slabs or faceted into ovals.

Uses & Applications

Hackmanite is an interesting mineral whose major commercial appeal is that it is fluorescent under ultraviolet light. It is prized and sought after by mineral collectors for this unusual characteristic. Good examples of this hard stone can also be cut into faceted gems for use as unusual jewelry items.

Healing Properties

It is said that the function of hackmanite is to adjust the crown, throat, and third eye chakras, cleansing the body and removing any blockages between these. It's said to be grounding, strengthening the relationship between the possessor and the environment around them. If you have sleep problems or disorders of the throat, hackmanite is believed to mitigate those effects.

Optical Properties

Refractive Index
1.483-1.487
Pleochroism
None
Optical Character
Isotropic
Dispersion
0.018

Hackmanite Market Value Calculator

Estimate the market value of Hackmanite using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.

Preview only. Full pricing comps and valuation report in the app.

Hackmanite Localities Map

See where Hackmanite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.

Map preview
North ZoneCentral RidgeSouth Basin

Interactive map layers and collecting notes are available in the app.

Associated Chakras

Throat
Throat
Third Eye
Third Eye
Crown
Crown

Quick Facts

Physical Properties

Color
Pink, pale to deep violet
Streak
White

Chemical Properties

Chemical Formula
Na8Al6Si6O24(Cl2, S)
Elements
Al, Cl, Na, O, S, Si
FREE APP
4.7
Ruby Glint rock identifier app

Identify Hackmanite Instantly

  • Snap a photo, get instant results
  • 6,700+ rocks, minerals & crystals
  • Discover collecting spots near you

Related Sodalite

Explore More Rocks & Minerals