Shungite
Shungite is a black, matte, carbon-rich rock found in Russian Karelia. Its age is estimated at roughly two billion years. It has a hardness of about 3.5 to 4 on the Mohs scale. It is used as a decorative stone, pyramids and beads.
Shungite is a black, matte, carbon-rich rock found in Russian Karelia. Its age is estimated at roughly two billion years. It has a hardness of about 3.5 to 4 on the Mohs scale. It is used as a decorative stone, pyramids and beads.