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Chiastolite

Photo: Moha112100 / Wikimedia Commons (CC BY-SA 3.0)

Chiastolite

Also known as: Cross stone

Andalusite with a natural dark cross inside – the traditional 'cross stone' of protection.

  • ColourBrown, Grey, Black cross
  • Mineral groupAndalusite (aluminium silicate)
  • ChemistryAl₂SiO₅
  • Hardness (Mohs)6.5–7.5
  • Crystal systemOrthorhombic
  • Where it's foundSpain, China, Australia, Chile, USA
  • ChakraRoot
  • ZodiacLibra

What is Chiastolite?

Chiastolite is a variety of andalusite that shows a natural dark cross when cut across the crystal. The cross forms from carbon inclusions pushed aside as the crystal grew in metamorphic rocks. The name comes from the Greek chiastos, "marked with an X". Pilgrims once carried chiastolite from Santiago de Compostela in Spain as a talisman.

Chiastolite astrology & birthstone

  • Zodiac signsLibra
  • Ruling planet—
  • ElementEarth
  • Birthstone month—

Zodiac, planet and element links come from crystal-lore traditions and vary between authors. Birthstone months follow the American Gem Society list.

Chiastolite meaning & traditional properties

Known as the "cross stone", chiastolite is associated with protection, balance and grounding.

  • Protection
  • Balance
  • Grounding

Traditional and metaphysical properties are shared for cultural and educational interest. Crystals are not a substitute for medical advice or treatment.

How to use Chiastolite

  • Carry a chiastolite slice as a protective talisman.

How to care for Chiastolite

Hard and durable. Clean with warm soapy water.

Looking for Chiastolite?

Chiastolite isn't in our shop right now – new stock arrives regularly. In the meantime, explore similar crystals we have available or browse our full crystal collection.

  • Black Tourmaline
    In our shop

    Black Tourmaline

    Striated black crystals of schorl – the most popular protection and grounding stone in crystal lore.

  • Smoky Quartz
    In our shop

    Smoky Quartz

    Brown to smoky-grey quartz darkened by natural radiation – Scotland's national gem and a grounding stone.

Rituals & pairings

Pair Chiastolite with a protection & cleansing ritual

A traditional cleansing ritual for resetting your space and feeling protected.

Traditionally paired with: White sage or palo santo smudge sticks · Dragon's blood, frankincense or myrrh incense · A white or black candle

  • Open a window, then light a white sage or palo santo stick and let it smoulder.
  • Gently waft the smoke around your crystal and through the room, corners first.
  • Light a white candle and place your crystal beside it while you set a simple intention, such as "This space is calm and protected".
  • Finish with frankincense or dragon's blood incense and let it burn down safely.

Safety: never leave candles, incense or smudge sticks burning unattended, keep them away from children, pets and anything flammable, and ventilate the room. Rituals are shared as tradition, not as a treatment.

Ritual oils, essential oils & perfumes

Deepen your practice: tarot & oracle cards

Wear it & work with it

Chiastolite jewellery & pendulums

Wear the energy of your favourite crystals every day – browse our handmade crystal jewellery and dowsing pendulums.

Chiastolite FAQs

What makes the cross in chiastolite?

Dark carbon inclusions arranged along the crystal's growth zones.

Related crystals

  • Staurolite

    Staurolite

    Crystals that naturally grow as crosses – the legendary 'fairy cross' of Virginia and Brittany.

  • Black Tourmaline
    In our shop

    Black Tourmaline

    Striated black crystals of schorl – the most popular protection and grounding stone in crystal lore.

  • Smoky Quartz
    In our shop

    Smoky Quartz

    Brown to smoky-grey quartz darkened by natural radiation – Scotland's national gem and a grounding stone.

Sources