Mined in Derbyshire and smelted during a period of Roman occupationGalena, the ore of lead, was mined in Derbyshire from the Bronze Age. Romans worked lead ore in Derbyshire where it was smelted ...

A lot of political changes are coming to Portland, Ore. The open mayoral race in the state’s most populous city features 19 candidates — all vying to lead after years of growing frustration ...

The production of key minerals such as iron ore, manganese ore, bauxite and lead in the country have recorded a robust growth ...