The Mist Stone does Not exist in ANY Pokemon game. Period!

the mist is about clouds of mist trapping people inside a store because the mist had flesh eating monsters.

Mist is a very dense water vapor, almost as thick as fog. ... As a verb, mist means "to cover with mist," so you might mist your dry plants or watch your windows mist up in the rain. Mist can also refer to a general dimness or cloudiness: "She watched through the mist of her tears."

The Mist was created in 1980.

mist = Nebel