1/2" (12.5mm) Druzy Rough Amethyst Single Flare Plugs1 2" (12. 5mm) Druzy Rough Amethyst Single Flare Plugs. Wearable is approximately 3 8". You will receive the exact pair pictured. Chakra Third Eye (6th) Metaphysical Amethyst is said to help one with the release of addictions through giving you clarity of the mind while helping to balance the brain and nervous system. It is also used as a protective stone and is said to help one go into a very deep meditative state. About Amethyst is found in a