Fire Agate Gem

Fire Agate Gems are valuable gems in the game which may be found. This item appears in Baldur's Gate (game), Baldur's Gate: Enhanced Edition, Baldur's Gate II: Shadows of Amn and Baldur's Gate II: Enhanced Edition.

In-game description
"Fire Agate is the name given to chalcedony which contains thin lines of iridescent goethite. When properly cut, the iridescence displays red, brown, gold, and green hues, and the finest specimens are partly translucent."