7. Ironstone and Mineral Veins
The Black Belt’s soil conceals rich mineral deposits, notably nodules of ironstone. These iron-rich sedimentary rocks, composed of minerals like hematite and limonite, have historically influenced local industry and been utilized in regional architecture. For example, ironstone was mined in Bibb, Blount, Cherokee, DeKalb, Etowah, Jefferson, and Tuscaloosa Counties, contributing to the development of Birmingham as an industrial center (encyclopediaofalabama.org).
