Amethyst

Amethyst is crystalline quartz in colors ranging from pale lilac to deep reddish purple.

AKA "the all purpose stone", Amethyst is a protective stone that helps to relieve stress and anxiety in your life and the symptoms that accompany it, namely headaches, fatigues, and anxiety. It also aids in cell regeneration (supporting your bones and joints) and is known to help improve your skin.