SHUA-B-01 Origin: Russia Grade: AAA Dimensions: Approximately 15-20mm Weight: Approximately 3-5g Origin: Russia Grade: AAA = Extra (best possible quality) Raw silver quality shungite of Extra approximately 15-20mm. Sold individually. Shapes may vary from one stone to another. Elite or silver quality shungite has a glassy, black, shiny, and metallic appearance. It has a carbon content of up to 98%. Shungite is an organic mineral found only in one place in the world: in the Northwest of Russia, in Karelia, in the Lake Onega region called Shunga, near the White Sea. The name Shungite thus originates from the extraction region of this stone.