Dumortierite belongs to the silicate class of minerals, and boasts a deep violet to blue colour. Dumortierite is named for the French paleontologist Eugene Dumortier, who discovered the stone in the Rhône-Alps of France in 1881.
Dumortierite may be used as a protective talisman. A stone of clarity, Dumortierite can help to increase focus and concentration, allowing its holder to feel more energetic, and more themselves.