Amethyst is a member of the quartz family and is known to be a balancing & clearing stone. It is said that it can help facilitate the transmission of lower frequency into higher energies & opens up the Third Eye & Crown chakras - perfect for meditation. Emotionally, it is thought to help one find the root of their causes behind certain thought patterns or behaviors such as addictions. Throughout history it has been used to promote sobriety. When it comes to sleep, it can help with insomnia & recalling dreams, & is thought to be more powerful if one sleeps in an Amethyst triangle setup. Very frequently, this stone calls to people who are just beginning their work with crystals, but is one that even the most experienced crystal healers hold onto.
These particular clusters are from Artigas, Uruguay. They are A-C from left to right and top to bottom with photos in order as well.