Mineral is an unincorporated community in Waterloo Township, Athens County, Ohio, United States. Centered on State Route 356, it was established as a coal-mining community. It is located on Mud Lick Run, which flows into nearby Hewitt Fork, a tributary of Raccoon Creek. The B&O Railroad once ran through the community, but was abandoned in the 1980s. In recent years, the portion of the old railroad grade going west from the community has become the Moonville Rail-Trail. The King Switch Tunnel on the grade is close to the community.