Natural stone roll-on — Black tourmaline · Silver cap

A glass bottle topped with a natural stone rollerball, to refill as often as you like.

A deep black striated with vertical grooves, with a distinctive glassy luster on fresh faces.

What tradition says. The most classic of protective stones: tradition credits it with filtering and absorbing, particularly near workspaces.

The model. Black tourmaline · Silver cap.

Use & care. Fill with a plant oil or an aromatic blend, then apply to the pulse points. The cold ball is part of the pleasure. Rinse the bottle with alcohol between blends so the scents do not mix.

• Also called schorl, it is piezoelectric — it takes on a static charge when heated or compressed.
• Finish: silver cap
• A natural piece: shade, veining and dimensions vary from one example to the next

A decorative object for personal practice. It is no substitute for medical advice or treatment.