Charcoal

Impure carbon prepared from vegetable or animal substances; esp., coal made by charring wood in a kiln, retort, etc., from which air is excluded. It is used for fuel and in various mechanical, artistic, and chemical processes.

Finely prepared charcoal in small sticks, used as a drawing implement.

a carbonaceous material obtained by heating wood or other organic matter in the absence of air

of a very dark grey

a stick of black carbon material used for drawing