Manganese Ore

Mn - Mohs Hardness: 6 1/2.  Manganese is essential to iron and steel production for its alloying properties. It gives steel strength and improves its workability at high temperatures. It is also commonly alloyed with aluminum to increase strength and corrosion resistance. About 80% of the worlds known resources are located in South Africa.
Abstract/Description: Mn - Mohs Hardness: 6 1/2. Manganese is essential to iron and steel production for its alloying properties. It gives steel strength and improves its workability at high temperatures. It is also commonly alloyed with aluminum to increase strength and corrosion resistance. About 80% of the world's known resources are located in South Africa.
Subject(s): Maine, United States
environmental sciences