(3) Mica Explanation: Mica is produced in huge proportion in India. In fact, India is one of the leading suppliers of mica to the world. India alone accounts fora major portion of the world's export of block mica and mica splitting. India produces approximate 90% of the world's mica. It is an indispensable component of the electrical industry. India accounts for 60 % of mica embarking in international trade.