Composition of rock

Zazhoginskoye deposit is represented by shungite rock of the following composition:

Main components:
carbon…………………………………………….30
quartz……………………………………………..45
composite silicates (micas, chlorites)……..20
sulphates………………………………………….3

Chemical composition (mass %):

SiO2 TiO2 Ai2O3 FeO MgO CaO Na2O K2O S C H2O
57,0 0,2 4,0 2,5 1,2 0,3 0,2 1,5 1,2 30,0 1,7

Composition of rock in Zazhoginskoye deposit is rather по составу. The sum (C+SiO2) makes about 83 – 88%

Шунгит Зажогинский
Шунгит Зажогинский
Distribution of C in shungite rock in Zazhoginskoye deposit. Distribution of SiO2in shungite rock in Zazhoginskoye deposit.