You can always tell a piece of Jet compared to other black crystals as it is super light. For me I think of it as lightening my load when energy around me feels heavy. I haved used it for grief of loved ones and loved pets.
As a black crystal it is used for protection. It assists with the removal of unwanted negative energy in forms such as anger and jealousy.
Cleanse on the Earth at night.
I will intuitively choose a piece for you.