Mica is found throughout the world, including Africa, India, Australia, Brazil, the United States and Canada. The largest mica producer is India, followed by the United States, Brazil and Africa. India is the country with the largest reserves of mica flakes in the world, accounting for approximately 60% of the world's total.

In India, mica is mined mainly in the states of Jharkhand and Bihar. These two states are the major sources of mica in India as they have the largest deposits of mica-bearing rocks. Mica deposits in Jharkhand and Bihar are formed by metamorphism of sedimentary rocks (mainly shales) and contain mica minerals in their mineralogy.