Very Short Question and Answers - Non-Ferrous Minerals

Non-ferrous minerals are minerals that do not contain iron in appreciable amounts. They are usually lighter, non-magnetic, and resistant to corrosion.

Two common ores of copper are chalcopyrite (CuFeS2) and chalcocite (Cu2S).

Copper is used for electrical wiring and cables, plumbing and roofing materials, and manufacture of electrical appliances and printed circuit boards.

India’s largest copper mine is located in Malanjkhand, Balaghat district, Madhya Pradesh.

Bauxite is mainly composed of hydrated aluminium oxides such as gibbsite, boehmite, and diaspore, along with impurities like iron oxides and silica.

Aluminium is used to make aircraft bodies and kitchen utensils.

Bauxite is mainly found in Odisha, Gujarat, and Maharashtra.

National Aluminium Company (NALCO) in Odisha is the largest producer of aluminium in India.

Lead is mainly found in galena (PbS), and zinc is mainly found in sphalerite or zinc blende (ZnS).

Lead is used in lead-acid batteries and radiation shielding, while zinc is used for galvanization and making brass.

Rampura Agucha mine is located in Bhilwara district, Rajasthan, and is one of the world's largest zinc mines.

Hindustan Zinc Ltd (HZL) is the principal producer of lead and zinc in India.

Zinc protects iron and steel from rusting by galvanization, which is coating the metal surface with zinc acting as a barrier against corrosion.

Gold naturally occurs in native metallic form, often found in vein deposits with quartz and alluvial placer deposits in river sands.

Two major gold mining regions in India are Hutti in Karnataka and the Ramagiri belt in Andhra Pradesh.

The most common use of gold in India is for jewellery, especially wedding jewellery and traditional ornaments.

One environmental concern is cyanide pollution from gold extraction processes.

Recycling metals saves large amounts of energy and reduces the pressure on mineral deposits, helping environmental conservation.

The Bayer process is used to convert bauxite into alumina (Al2O3) during aluminium production.

Copper: Malanjkhand (MP), Bauxite: Koraput (Odisha), Lead-Zinc: Rampura Agucha (Rajasthan), Gold: Hutti (Karnataka).