AAA grade, Quartz Crystal puffed disc beads. These Quartz Crystal disc beads were mined in Brazil. They measure 12mm on average. Quartz is known to be a very powerful stone and is often referred to as the Universal Crystal" because of its many uses. Quartz beads are said to enhance energy by absorbing, storing, amplifying, balancing, focusing and transmitting. Quartz also enhances thoughts and is known to be extremely beneficial for manifesting, healing, meditation, protection, and channeling. Surely, you could use some of these positive effects in your life!