Black tourmaline — schorl, to give it its mineral name — is the workhorse of the protection stones. It grows in ridged black columns, often shot through a quartz matrix, and it is pyroelectric: heat one end and it genuinely develops an electrical charge, which is probably where centuries of "energy" folklore attached themselves.
What black tourmaline is used for
The tradition is unanimous: this is the boundary stone. It is placed at doors and windows, carried in pockets on difficult days, and set at the corners of a room. Where rose quartz is for what you let in, black tourmaline is for what you keep out. Root chakra, and the go-to stone for anyone who describes themselves as absorbing other people's moods.
One by the front door and one in the coat pocket is the classic arrangement. Raw pieces are cheaper than polished and the tradition holds them just as good.
How to care for it
Cleanse with sound or smoke; avoid salt water. The ridged surface collects dust — a dry soft brush does more for it than any cleansing ritual.
Black Tourmaline in the shop
Stones that keep it company
The full crystal library → · Not sure? Take the two-minute quiz →