There is a lot of information on Shungite out there on the web. Rather than rewrite all of it, I'm going to list some general information and then follow that with some great articles that I feel are from trust worthy sources. I hope that you find them all helpful.
Shungite is a black, lustrous, non-crystalline mineraloid consisting of more than 98 weight percent of carbon. It was first described from a deposit near Shunga village, in Karelia, Russia, from where it gets its name. Shungite has been reported to contain trace amounts of fullerenes (0.0001 < 0.001%).
PETROVSKY SHUNGITE - * This type of Shungite is rare and will be clearly labeled both online and in our retail locations.
Petrovsky shungite contains from 70% to 80% of carbon which is much more than usual shungite (around 30%), which is mostly used for pyramids, spheres and other things, but, of course, less than the noble (or silver) shungite (up to 98%). 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. Read the story about the Petrovsky Shungite below.http://skylineminerals.com/shungite_petrofsky.html Health Benefits? Tap into this article from Healthline
Kills bacteria and viruses
Reduces oxidative stress
Shields EMF emissions