Approximate size 2 to 4 cm.
This product is sold in units.
The shungit chemical structure, resembles the 3D shape of the Flower of Life. It is also known as "smart mineral or black hole"; by having attraction and adsorption properties of the electromagnetic energy.
This mineral has the power to neutralize negative information all around us in the form of electromagnetic pollution (wifi, computers, appliances, plugs, microwave, etc.) and also neutralizes geopathies; never wears out and requires no maintenance.
The shungit is a mineral that contains all Mendeleïv table elements and acts as a superconductor.
Its natural content the Fullerenes, seems to be the main cause of all these qualities.
Due to its molecular structure, this mineral forms a kind of quantum bridge that allows you to organize healthy electromagnetic field that surrounds it; as if own intelligence. This work is carried torsion fields generating clockwise (clockwise), as they are left (counterclockwise) are harmful.

You can find more detailed information on uses and qualities, the book in Spanish: Shungit, Extrema protección.