Chevron Amethyst is excellent for working with the third eye and stimulating the third eye chakra. It can enhance intuition and is a powerful stone for dissipating and repelling negativity. It has a cleansing effect on the aura.
 
Amethyst has been known pretty much forever as the master of ceremonies when it comes to spirituality.  It is a powerful protection stone creating a bubble around the carrier, warding off psychic attacks and negative energy.  It is also seen as the sobering stone, very good for any and all forms of addiction, from alcoholism to anorexia, if you suffer with either of these, or love someone who does, a good sized piece of Amethyst under their bed, at the head end will work while they sleep.