Page 75 - general studies for nda/na

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READY RECKONER OF INDIANGEOGRAPHY |35|

burnt. It is found in Rajasthan, Lakhimpur (Assam), and Gypsum:
Tamil Nadu. Gypsum is mainly used in making Ammonia sulphate
Peat has less than 40 per cent carbon content. It is in the fertilizer and in cement industry.
first stage of transformation from wood to coal. It has low Bulk of production of Gypsum comes from Rajasthan
calorific value and burns like wood.
(99%) and the remaining 1% from Jammu and
Mica:
Kashmir and Gujarat.
Mica’s insulating properties have made it a valuable
Atomic Minerals
mineral in electrical and electronics industry.It can
Uranium:
withstand high voltage and has low power loss factor.
Uranium deposits occur in Jaduguda of Singbhum and
India contributes about 60 per cent of world’s total
Hazaribagh districts of Jharkhand, Gaya district of
production.
Bihar and Saharanpur district of Uttar Pradesh.
Andhra Pradesh is the largest mica producing state of
India accounts for only 2% of world Uranium
India.
production.
Limestone:
Thorium:
Limestone is used for a large variety of purposes. Of
It is found in the Monazite sands of Placer deposits of
the total consumption, 75 per cent is used in cement
coastal regions.
industry, 16 per cent in iron and steel industry and 4
Although Monazite sands are found in east and west
per cent in the chemical industries. Rest of the
coast, the largest concentration is on the Kerala
limestone is used in paper, sugar, fertilizers, glass,
coast.
rubber and ferromanganese industries.
Thorium is also extracted from Thorianite.
Over three-fourths of the total limestone production
Kerala, Jharkhand, Bihar, Tamil nadu and Rajasthan
in India is from six states, Madhya Pradesh,
are the major producers of Thorium.
Rajasthan, Andhra Pradesh, Gujarat, Chhattisgarh and
Beryllium:
Tamil Nadu.
Beryllium oxide is used as moderator in nuclear
Asbestos:
reactors.
The name ‘Asbestos’ denotes two different minerals,
India has sufficient reserves of Beryllium.
namely, Ampibole and Chrysotile.
Lithium and Zirconium:
Chrysotile accounts for 80% of asbestos of
Lithium is a light metal which is distributed in the
commercial use.
states of Jharkhand, Madhya Pradesh and Rajasthan.
Andhra Pradesh is the largest producer of Asbestos in Zirconium is found in Kerala coasts and in alluvial
India. deposits of Ranchi and Hazaribagh of Jharkhand.
Dolomite:
Limestone with more than 10% Magnesium is called
Dolomite.
Dolomite is used in Iron and Steel industry (more
than 90%), followed by Fertilizer (4%), Glass (2%) and
steel (1%).
Chhattisgarh is the leading producer of Dolomite
(28%), followed by Andhra Pradesh (23%), Odisha
(13%) and remaining 36% by other states.

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