Each Shungite Palmstone is 4.5 x 3.5 x 1.5cm in size with a ‘puffy’ soap-like shape.
Black Shungite or Petrovsky Shungite contains 75-50% carbon; it has a deep black color, similar to coal. Black Shungite is industrially mined, and due to its composition – carbon, other minerals, and chemical elements – can be cut in various shapes and polished.