"Spirit Quartz" - Cactus AmethystCactus Quartz, or Spirit Quartz, is a unique formation of Quartz that is only found in the Magaliesberg Mountains in South Africa. They are characterized by its core crystal structure having hundreds of smaller crystals growing along the prism faces. Typically, the main termination of the core crystals remains free of the "cactus" formation. Typically, Cactus Quartz is in varieties of Amethyst, Citrine, Smokey, and White Quartz. Amethyst is found in