I think you might be talking about soot. Soot is the leftover stuff from when wood or other materials are burnt.
soot...you asstard
Umbuthi is a kikuyu word which means powdery stuff.
A black powdery or flaky substance consisting largely of amorphous carbon, produced by the incomplete burning of organic matter.
A chimney chase is the structure through which chimney pipe is run.
Chimney
The regular plural of chimney is chimneys.
pieces of white powdery stuff.
It is soot, which is impure carbon particles resulting from the incomplete combustion of coal, wood, oil, etc.
Umbuthi is a kikuyu word which means powdery stuff.
CaBr2 is the Chemical Formula of the white powdery stuff called Calcium Bromide.
black rat snake
The preposition in the sentence "Black smoke rose up the chimney" is "up." This preposition indicates the direction in which the smoke is moving.
colorless solution or white powder
Soot, ash, and dust.
chimney
The snow was very powdery on Sunday. The cocaine was more powdery than usual.
what is powdery ink
needs to be cleaned