Shungite is an extremely ancient stone that is believed to have a powerful grounding energy.
It can help in the treatment of physical health ailments, as well as acting as a boost to mental health and inducing positive energy. (It contains fullerenes - a long-lasting powerful antioxidant that promotes healthy circular metabolism.)
In general, Shungite is really good for reducing stress and anxiety. It dispels negativity by absorbing the surrounding negative energy. In fact, it can be used to defend against electromagnetic frequencies caused by electronic devices.
Various sizes available.