This crystal is Amethyst. Amethyst is the stone of spiritual protection and purification. It is said to create a "Shield of Spiritual Light" around the body. Carry this crystal to protect from low energies, stress and unhealthy environments.
Banded Amethyst Crystal Points
These Banded Amethyst Crystal Points are about 1-7/8" tall and 1" wide for the large size and about 2-1/4" tall and 3/4" wide for the medium size. About 2" tall and 5/8" wide for the small size.