Mica It is a non-metallic mineral and India is the largest producer and exporter of mica. Better deposits of mica occur in Hazaribagh district of Jharkhand, and Gaya district of Bihar. Nellorestrict of Andhra Pradesh and in Rajasthan Koderma mines in Jharkhand arc one of the important producing areas. India had almost a monopoly in mica exports. However with the development of substitutes of this mineral, production of mica in India has suffered due to declining demand in the world market.
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