Minerals and Energy Resources Test - 38

• Musabani also spelled as Mosabani or Mushabani, it is a census town in Purbi Singhbhum district in the Indian state of Jharkhand. It is famous for its copper mines.
• Raniganj Coalfield is primarily located in the Asansol and Durgapur subdivisions of the Paschim Bardhaman district of West Bengal.
• Jharia Coalfield is a large coal field located in the east of India in Jharia, Jharkhand.
• Korba Coalfield is located in Korba district in the Indian state of Chhattisgarh in the basin of the Hasdeo River, a tributary of the Mahanadi.

Bauxite is a mineral which is formed by the decomposition of rocks, leaving a residual mass of weathered material. Bauxite, rock largely composed of a mixture of hydrous aluminum oxides. Bauxite is the principal ore of aluminum.

Limestone is a sedimentary rock composed primarily of calcium carbonate (CaCO₃) in the form of the mineral calcite. It most commonly forms in clear, warm, shallow marine waters. It is usually an organic sedimentary rock that forms from the accumulation of shell, coral, algal, and fecal debris

• First oil refinery in India was set up in Digboi, a town in Tinsukia district of Assam. Digboi is also known as oil city. Oil refinery here was started in and around 1901.
  
• Present day, though the crude production is not high, Digboi has the distinction of being India's oldest oilfield. Digboi refinery which is now a division of Indian Oil Corporation, has a capacity of about 0.65 MMTPA as of 2003.
  

Largest producer of bauxite in the world is Australia. China produces 47,000 tonnes of bauxite per year. India stands next to China with a production of 32,500 tonnes per year.

Magnetite is a rock mineral and one of the main ores of iron. It is one of the oxides of iron, and is ferromagnetic; it is attracted to a magnet and can be magnetized to become a permanent magnet itself. It is the most magnetic of all the naturally-occurring minerals on Earth.

Energy minerals are used to produce electricity, fuel for transportation, heating for homes and offices and in the manufacture of plastics. Energy minerals include Coal, Oil, Natural gas, Petroleum, and Uranium.

 Certain minerals may occur as alluvial deposits in sands of valley floors and the base of hills. These deposits are called ‘placer deposits’ and generally contain minerals, which are not corroded by water. Gold, silver, tin and platinum are most important among such minerals.

Precious metals are not minerals .Precious metals are rare, naturally occurring metallic chemical element of high economic value. Chemically, the precious metals tend to be less reactive than most elements. They are usually ductile and have a high lustre.

All the oil and gas fields discovered till date in the Upper Assam shelf, are situated mostly on the southeastern slope of the Brahmaputra arch. Some of the major oil fields are Nahorkatiya, Lakwa, Lakhmani, Geleki, Dikom Kathaloni, etc.