Schorl, Black Tourmaline, is associated with the root or base chakra, and is excellent for grounding excess energy. It is a well known as a purifying stone that deflects and transforms negative energy, and thus is very protective. It can transform and remove negativity from an individual or an environment. It is often used as an aura cleanser, and can help one attain higher levels of awareness. Schorl is also used for repelling and protecting one from black magick, evil spirits, and is often said to return the negative spell to the sender. Some claim that it deflects all kinds of energy, but my personal experience is that this is not the case. It is possible that the black tourmaline's effect of grounding excess energy gives this impression. Schorl has also been used to deflect EMF radiation energy from tvs, computer monitors and other EMF sources. 2-3cm stones
Black Tourmaline (Schorl)
Emotionally, Schorl is excellent for dispelling fears, obsessions, and neuroses, bringing emotional stability.
Physically, Schorl is used in crystal healing to strengthen the immune system, help with heart disease, arthritis, and gout. Note that healing crystal meanings are spiritual supports to healing and are not prescriptions or healthcare information.
As Schorl is a type of tourmaline it has those properties as well as its own.
TOURMALINE:
Tourmaline is a stone that can increase flexibility, happiness, hope, objectivity, compassion and serenity. It also enhances tolerance and understanding. It is a stone that is very helpful for channeling. Tourmaline is also a very protecting stone. It is called the Poet's Stone. Tourmaline is often associated with the heart chakra, particularly watermelon tourmaline, where it opens one to accept love. Other colors of tourmaline are associated with additional chakras.