Shungite

Shungite is an amorphous variety of graphite of intense black color, which outwardly resembles anthracite.
Shungite is unique in its composition, structure and properties. It is a natural composite with a homogeneous distribution of crystalline silicate particles in a carbon matrix. Fullerenes have been discovered in this rock.

It is found in only one location of North West of Russia.

Shungite is said to exhibit unique shielding effect for harmful electromagnetic radiation of any origin like computers, microwave ovens, TV sets, mobile phones and others.
On a healing level it shields and protects from discordant energies.