Shungite is either a diverse group of metamorphosed Precambrian rocks all of which contain pyrobitumen, or the pyrobitumen within those rocks. It was first described from a deposit near Shunga village, in Karelia, Russia, from where it gets its name.
Shungite is either a diverse group of metamorphosed Precambrian rocks all of which contain pyrobitumen, or the pyrobitumen within those rocks. It was first described from a deposit near Shunga village, in Karelia, Russia, from where it gets its name.
Source: Wikipedia "Shungite" · CC BY-SA 4.0
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