Clear Quartz is possibly the most versatile, multipurpose and powerful healing stone available. It is a master healer that can be used for any and all conditions. It's said to amplify energy by absorbing, storing, releasing, and regulating it. It's also said to aid concentration and memory. Physically, clear crystals are claimed to help stimulate the immune system and balance out your entire body.
These stones are Raw (unpolished). And vary in size and appearance.