Cactus quartz is characterized by a large quartz crystal over which smaller crystals have grown. Usually this concerns amethyst, but this can also occur with citrine and smoky quartz or in a beautiful combination such as this cactus quartz in 'happy colours'
How is amethyst formed?
Amethyst is a purple variant of quartz and owes its typical purple color to the presence of iron that is colored purple by the ionizing radiation (or radioactive radiation) from the earth.
The cactus quartz is also known as spirit quartz. It is a powerful healer where the energy comes through the main crystal and is radiated in all directions through the small crystals. Spirit quartz provides unity and is an ideal stone for group meditation to connect all energies.