NON-METALLIC MINERALS OF INDIA
India with diverse and significant
mineral resources is the leading producer of some of the minerals.
Of the 89 minerals produced in India, 4 are fuel minerals, 11 metallic,
52 non-metallic and 22 minor minerals. The share of the mineral
sector in the gross domestic product (GDP) of the country is around
3.5 per cent while accounting for 10 per cent share in the index
of industrial production. Though 80 % of the mines are in the private
sector, yet 91% of the production in terms of size comes from the
government owned mining ventures. Mining employs over 8,00,000 persons.
India is the largest producer of mica
blocks and mica splitting; ranks third in the production of barites
and chromites; 4th in iron ore, 6th in bauxite and manganese ore,
10th in aluminum and 11th in crude steel. Iron- ore, copper-ore,
chromites, zinc concentrates, gold, manganese ore, bauxite, lead
concentrates and silver account for the entire metallic production.
Limestone, magnesite, dolomite, barites, kaolin, gypsum, apatite
and phosphorite, stealite and fluorite account for 92 per cent of
Principal non-metallic minerals found
in the country along with their estimated recoverable reserves are
Asbestos The total
recoverable reserves of asbestos in the country are placed at 93
million tones. Karnataka, Bihar and Rajasthan are the principal
producers of asbestos
Dolomite The total
recoverable reserves of all grades of dolomite are 4,387 million
tones. Of these, the major share of about 92 per cent reserves is
distributed in seven states- Madhya Pradesh, Orissa, Gujarat, Karnataka,
West Bengal, Uttar Pradesh and Maharashtra.
Gypsum The recoverable
reserves of gypsum are estimated at 238 million tones. The production
of gypsum is confined to Rajasthan, Tamil Nadu, Jammu and Kashmir,Uttar
Pradesh and Gujarat. Rajasthan is the main producer of gypsum followed
by Jammu and Kashmir.
Limestone The total
recoverable reserves of limestone of all grades and categories are
placed at 76,446 million tones. The major states of its production
are Madhya Pradesh, Andhra Pradesh, Gujarat, Rajasthan, Karnataka,
Tamil Nadu, Maharashtra, Himachal Pradesh, Orissa, Bihar and Uttar