Mica :--
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Mica is a naturally occurring non-metallic
mineral that is based on a collection of
silicates.
Mica is a very good insulator that has a
wide range of applications in electrical and
electronics industry.
It can withstand high voltage and has low
power loss factor.
It is used in toothpaste and cosmetics
because of its glittery appearance. It also
acts as a mild abrasive in toothpaste.
India is one of the foremost suppliers of
mica to the world. Mica-bearing igneous
rocks occur in AP, Bihar, Jharkhand,
Maharashtra, Rajasthan.
Mica Reserves in India
1. Andhra Pradesh (41 per cent)
2. Rajasthan (21 per cent)
3. Odisha (20 per cent)
4. Maharashtra (15 per cent)
5. Bihar (2 per cent)
6. Jharkhand (Less than 1 per cent)
Mica Distribution and Production in
India
India has a near monopoly in the
production of mica [60 % of world's total].
Production decreased in recent times due
to fall in demand in the international
market. Fall in demand is due to better
synthetic alternatives that are available.
Andhra Pradesh
1st in production [93 %].
The mica belt lies in Nellore district
[Gudur Mica mines].
Vishakhapatnam, West Godavari and
Krishna are other important mica
producing districts.
Rajasthan
2nd in production [6.3 %].
The main mica belt extends from Jaipur to
Udaipur [Along Aravalis].
Jharkhand
3rd in production.
Mica is found in a belt extending for about
150 km in length and 32 km in width from
Gaya district of Bihar to Hazaribagh and
Koderma districts of Jharkhand. This belt
contains the richest deposits of high
quality ruby mica.
Koderma is a well-known place for mica
production in Jharkhand.
Mica Exports
India is the largest exporter of mica.
Certain grades of Indian mica are and will
remain vital to the world's electrical
industries.
Major exports are carried out through
Kolkata and Vishakhapatnam ports.
Important imports of Indian mica are
Japan (19%), the USA (17%), U.K, etc.
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