Mercury (quicksilver) زئبق

In a dream it is a matter that will not be completed. Whoever sees that he gave someone mercury, or made him its owner, or that it was in his hand, will break a promise to someone; and if he ate it, he himself will be the one afflicted by that broken promise.

Whoever sees that he has some mercury in his hand is wavering in his religion, follows his own whims, and is treacherous and untrustworthy.