Specimens of petrovsky (70-80% carbon) shungite with the layer of noble shungite

Price per kg.

There are various sizes of shungite specimens. 

Petrovsky shungite contains from 70% to 80% of carbon which is much more than regular shungite. The name evolved from that of the Russian emperor Peter the Great. Petrovsky Shungite has a very long history, full of incredible tales and legends, because people started using it even before the times of Peter the Great.