Charcoal black is finely ground material obtained by carbonizing (charring) wood. It is very stable as are all carbon blacks and is absolutely lightfast and compatible with all other pigments.
Carbon blackPBk 8, CI 77268The first element is either Old French charbon “charcoal,” or, on the current theory, obsolete charren “to turn” (from Old English cerran) + cole “coal,” thus, “to turn to coal.” From Online Etymology Dictionary
Charcoal black can be prepared by charring wood.
The pigment has been in use since prehistoric times.Examples of use