Black tourmaline

More about this category

Black tourmaline, or schorl, is the most common tourmaline: a cyclosilicate containing iron and boron, with black, opaque crystals striated along their length.

  • Colour: black, opaque, striated crystals.
  • Family and hardness: cyclosilicate (borosilicate), schorl; Mohs hardness 7 to 7.5.
  • Traditional symbolism: As a black stone, it is associated in many traditions with protection and grounding.
  • Care: Lukewarm water and a soft cloth; raw or polished, it is hard-wearing. Striated crystals are brushed dry.

Black tourmaline (schorl) is the most common tourmaline. Smooth, shiny black beads can be other materials (dyed agate, glass, obsidian): the raw, striated form is easier to recognise.

Profile: Black tourmaline

Colourblack, opaque, striated crystals
Mineral familycyclosilicate (borosilicate), schorl
Hardness (Mohs scale)7 to 7.5
Contact with wateryes
Sun exposureyes
Traditional symbolismAs a black stone, it is associated in many traditions with protection and grounding.
Traditional chakraroot
CareLukewarm water and a soft cloth; raw or polished, it is hard-wearing. Striated crystals are brushed dry.
Good to knowBlack tourmaline (schorl) is the most common tourmaline. Smooth, shiny black beads can be other materials (dyed agate, glass, obsidian): the raw, striated form is easier to recognise.

See all the stones in the glossary · Cleansing and recharging

The meanings given are traditions and symbolism, presented for their cultural and personal interest. They are not promises of results and do not replace the advice of a health professional.