Gorgon mud

Gorgon mud, referred to in Jotun as fjellblod by the stone giant thane Kayalithica, was a variety of magical mud that carried a petrification effect.

Properties
This substance behaved similar to quicksand, gradually dragging victims down into it. When a sinking creature became immersed in gorgon mud, it would become subject to petrification.

Gorgon mud radiated a detectable aura of transmutation magic. When removed from its pool, the substance's magical properties became inert.

Availability
Gorgon mud could be found within various alcoves of Deadstone Cleft, where it long acted as a defensive measure for the stone giants that lived there.

Appearances

 * Adventures
 * Storm King's Thunder