What are some of the minerals and metals mined in the US 1860s?

In the 1860s, the United States saw significant mining activity, particularly in precious metals. Gold was a major focus, especially due to the California Gold Rush, which continued to attract miners to the West. Silver mining also gained prominence, particularly in states like Nevada. Additionally, other minerals such as lead, copper, and iron were extracted as the demand for industrial materials grew during this period.