56 ENVIRONMENTAL SCIENCE
(4) Chromite
Total recoverable reserves of Chromite, are estimated at 5.4. crore tonnes. Deposits of
economic significance occur in Andhra Pradesh, Bihar, Karnataka, Maharastra, Manipur,
Orissa and Tamil Nadu. However, refractory grade reserves of chromite are very meagre.
(5) Copper
Major and important copper ore producing areas are in Singhbhum District (Bihar),
Balaghat District (Madhya Pradesh) and Jhunjhunu and Alwar District (Rajasthan). In
addition, small production of copper ore comes from Khammam District (Andhra Pradesh),
Chitradung and Hassan Districts (Karnataka), and Sikkim. Copper ore reserves in the
Country are estimated at 63.2 crore tonnes with a metal content of about 82.8 lakh tonnes.
(6) Diamond
Total reserves and resources in the country are placed at 10.8 carats. main diamond
bearing area in India is Panna belt in Madhaya Pradesh, Ramallakota and Bangampalle
Chitradung rocks in Kurnool Districts and gravels of Krishan River Basin in Andhra Pradesh.
Presently, the only Diamond Pipe under exploitation is at Panna.
(7) Dolomite
Total recoverable reserves of dolomite of all grades are placed at 46.08 lakh tonnes.
Principal producing states for dolomite are Orissa, Madhya Pradesh, Gujrat, Bihar, Uttar
Pradesh and West Bengal.
(8) Gold
There are three important gold fields in the country, namely, Kolar Field in Kolar
District and Hutti Gold Field in Raichur District (both in Karnataka) and Ramagiri Gold
Field in Anantapur district (Andhra Pradesh). Total in-situ gold ore reserves and resources
are estimated at five crore tonnes with a total Gold content of 103.17 tonnes. However,
Kolar Gold Field Mines an Hutti account for bulk of Gold Ore Reserves, equivalent to about
57.6 tonnes in in-situ Gold.
(9) Fireclay
India has vast resources of fireclay with recoverable reserves of 70.3 tonnes. Fireclay
occurs in India mainly, associated with Coal Beds of Godwana and Tertialryt Basins. Major
fireclay producing states are Bihar, Gujarat, Madhya Pradesh, Orissa, Tamil Nadu, Rajasthan,
West Bengal and Andhra Pradesh.
(10) Fluorspar
Fluorspar mainly occurs in Gujrat, Madhya Pradesh and Rajasthan with total recoverable
reserves estimated at 18.8 lakh tonnes.
(11) Gypsum
Total reserves and resources of gypsum in the country are estimated at 120 crore tonnes,
of which recoverable reserves are 31.9 crore tonnes. Bulk of domestic production mineral
gypsum comes from Rajasthan and Tamil Nadu, Jammu and Kashmir, Himachal Pradesh
and Uttar Pradesh. Gujrat also produces small quantities.