Multiple terminations; a cluster of amethyst with micro amethyst on its main crystal. First known as "amethyst bruised", subsequently called "thorns amethyst", then "cactus amethyst" and the latest, "spirit quartz".
My answer to this confusion is simple. Just call it Amethyst, which are typically purple or violet quartz.
These is an awesome piece of amethyst cluster accompanied with a custom made stand.
Note: One image that is the same with the main image that is brighter. it is not enhance but use of extra light.