Smokepowder

"''Beware the engineers of society, I say, who would make everyone in all the world equal."

- Drizzt Do'Urden, ''Streams of Silver

Smoke powder was the Realms equivalent of black powder.

Realmslore
The difference was in the composition of the powder. The secret to making smoke powder was given by Gond to the Lantanese for sheltering him during the Time of Troubles. The church of Gond are one of the few manufacturers of smoke powder. It was banned on many cities and a source of friction as it is considered dangerous to use and a threat to the status quo.