A lethal new drug known as “gray death” has been found in Louisiana — and it is so powerful that touching it could kill you, authorities warned.

The “super drug” — which is composed of heroin, fentanyl and other deadly opioids — is reportedly 10,000 times more potent than morphine, officials claim. It could kill a person through skin contact with the substance, according to the St. Mary Parish Sheriff’s Office.

“You don’t want to touch this. If it all possible, you don’t even want to put it on your hands,” St. Mary Parish Sheriff’s Office spokesman David Spencer told news station KLFY.

“Gray death” first surfaced in Alabama and Georgia and has since been detected in St. Mary Parish, Louisiana, authorities said. It was recovered from a group of unidentified suspects traveling from Lake Charles.

The drug is described by authorities as looking like “small chunks of concrete.”

“You would really hate to see somebody innocent touch this not knowing what it is or a child touch that not knowing what it is,” Spencer told KLFY.

“We just definitely just want to educate the public so they know, hey, this is a new thing.”