metallic and non metallic minerals and their deposit in India
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MINERAL RESOURCES- METALLIC & NON METALLIC ABDUL MUHAIMIN K Dept.of Geography Ideal College,Cherpulassery
MINERAL RESOURCES A mineral is a pure inorganic substance that occurs naturally in the earth’s crust. More than two-thousand minerals have been identified and most of these are inorganic, which are formed by the various combination of elements. India produces 4 fuels, 11 metallic, 52 non-metallic and 22 minor minerals
Categories of Mineral Resources Mineral resources can be divided into two major categories. 1) Metallic Mineral Resources 2)Non-metallic Mineral Resources
1)METALLIC RESOURCES Metallic Minerals are metals that are hard substance and conduct heat and electricity with characteristics of luster or shine. Examples ; Iron ore Manganese Bauxite
1) IRON ORE iron & steel industry largely influences the economic status of a country Iron ore being the essential raw-material for Iron & Steel Industry, Following four varieties of iron ore Magnetite Haematite Limonite Siderite The total reserves of iron ore in the country are about 12,317.3 million tonnes of haematite and 5395.2 million tonnes of magnetite. 99 per cent of India s iron ore is produced by just five states of Karnataka, Orissa, Chhattisgarh, Goa and Jharkhand.
2)MANGANESE The total resources of manganese ore in the country placed at 430 million tonnes as per UNFC system. Out of these, 142 million tone are categorised as reserves and the balance 288 million tonnes are in the remaining resources category. Odisha tops the total resources with 44% share
3)BAUXITE The Total Resources of Bauxite in the country are placed at about 3,290 million tonnes These resources include 899 million tonnes of Reserves and 2,391 million tonnes of Remaining resources. Major deposits are concentrated in the East Coast Bauxite deposits of Odisha and Andhra Pradesh
2) NON METALLIC MINERALS Non-metallic mineral reserves consist of stone quarries and clay and sand pits; chemical and fertiliser mineral deposits; salt deposits; deposits of quartz, gypsum, natural gem stones, asphalt and bitumen Examples ; Gypsum Mica Limestone
1) MICA The total resources of Mica in the country is estimated at 393855 tonnes Rajasthan accounts for about 51 per cent resources, followed by Andhra Pradesh Maharashtra and Bihar. Uses of Mica Used in paints to brighten the colour Used in electronic equipment
2)LIMESTONE The total resources of limestone in India is 175345 million tonnes. Karnataka is the leading state followed by Andhra Pradesh, Gujarat, Rajasthan. Uses It is the raw material for the manufacture of cement t is added to toothpaste, paper, plastics, paint, tiles
3)GYPSUM The total resources of mineral Gypsum is 1,237 million tonnes The main occurrences of gypsum are located in Rajasthan, Jammu and Kashmir, Gujarat and Tamil Nadu Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O. It is widely mined and is used as a fertilizer, and as the main constituent in many forms of plaster, blackboard chalk and wallboard