|Powers||Can turn a Human into a Pile of Salt|
|Location/Owners||Castiel currently has the stone|
|Episodes||6.03 The Third Man|
This crystallized rock can transform a human’s body into a pillar of salt. Balthazar steals this weapon from Heaven. He later uses it to transform Raphael's Vessel into a pillar of salt in order to save Castiel.6.03 The Third Man
For Other Details see Angelic Weapon
Lot's Salt in Lore
Lot was forewarned by angels of the destruction of Sodom and Gomorrah. As he and his family left Sodom, his wife looked back despite the angels telling them not to, and she was turned into a pillar of salt.
This story, including why Sodom and Gomorrah were destroyed, can be found in the Bible: Genesis 19:1-26. The section where Lot's wife looks back is in Gen 19:24-26.
This Heavenly weapon was referred to (thus named) as the Salt Crystal in the Official Supernatural Magazine (Issue #22).