Chiastolite

Chiastolite is a variety of andalusite , an aluminous mineral belonging to the silicate group. What makes it unique and recognizable is its natural black cross visible in cross-section, formed by inclusions of carbon or other dark minerals. Its name comes from the Greek chiastos (χιαστός), which means "marked with a cross".

✦ Physical characteristics:

  • Color: Reddish brown to gray, with black X or + shaped cross.

  • Hardness: 6.5 to 7.5 on the Mohs scale.

  • Crystal system: orthorhombic.

  • Origin: Formed in aluminum-rich metamorphic rocks.

✦ Deposits:

Chiastolite is found in particular:

  • in Spain (region of Galicia),

  • in France (Brittany, Massif Central),

  • in the United States (California),

  • in Australia , China and Chile .

✦ Use:

  • Ornamental: used in jewelry, talismans and decorative objects.

  • Collection: highly prized by collectors due to its natural cross.

✦ Symbolism and properties (in lithotherapy):

  • Protection: shield stone against negative energies.

  • Balance: Helps harmonize body and mind.

  • Emotional stability: support in times of transition.

  • Anchoring: promotes spiritual rooting.

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List of Stones & Minerals

Chiastolite is a variety of andalusite containing dark inclusions of
carbon absorbed during crystal growth. These inclusions are arranged
regularly and form a cross.

The main deposits of these minerals are located in Chile, Russia.
The name comes from the Greek Kiastos which means 'marked with a cross'.
Chiastolite would help dispel residual fears linked to old traumas.