Any type of wood can be damaged by burn marks. Burn marks can come from things like a very hot pan or a fallen cigarette. A cigarette is more likely to fall and damage a wood floor, while a hot pan is more likely to damage a table. No matter what surface was burnt, a deep burn mark will be tough to remove. If it's gone through several layers of the wood and removed the finish, you will need to refinish the wood to fix the damage.
Sand over the burn mark using 180-grit sandpaper. Move the sandpaper in the direction of the wood grain. If possible, sand down past the burn mark until it's no longer visible.
Wipe down the wood surface with a tack cloth to remove sanding residue. Again, rub with the grain of the wood.
Use a paintbrush to apply the new finish to the wood. The finish should match the existing colour of the wood to ensure it blends evenly.
Wait for the first coat of finish to dry. If the colour doesn't quite match the rest of the wood, apply a second coat.