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Black Tourmaline

Also called Schörl

Saturn shield. Returns a chart to its own energy after hard aspects.

About this stone

Black Tourmaline (Schörl) is the most common variety of tourmaline — a complex boron silicate that piezoelectrically charges under heat or pressure. It is the classic protective stone of modern Western practice, assigned to Saturn. In synastry it is reached for when a partner's difficult transits keep landing on your chart, or when an outside relationship (family, ex, work) is bleeding into the primary one and needs a clean boundary.

At a glance

Ruling planet
Saturn
Chakra
Root
Colour
Opaque black
Mohs hardness
7 – 7.5
Origin
Brazil, USA (Maine, California), Pakistan
Supports
Hard aspects (squares, oppositions)
Traditional properties
  • protection
  • energetic boundaries
  • grounding
  • clearing

How Black Tourmaline links to the zodiac

This stone is traditionally paired with Capricorn, Scorpio, Sagittarius. Each sign draws on it slightly differently.

  • Capricorn

    earth · cardinal

    Capricorn pairs Black Tourmaline with Saturn for clean boundaries that hold without becoming walls.

    Ruling planet: Saturn

  • Scorpio

    water · fixed

    For Scorpio, Black Tourmaline filters out what is not its own — invaluable for an empathic, intense chart.

    Ruling planet: Pluto

  • Sagittarius

    fire · mutable

    Sagittarius uses Black Tourmaline to keep a wide-open chart from absorbing every stranger met on the road.

    Ruling planet: Jupiter

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