India is the largest producer of mica in the world. About 70 to 80% mica production in the world comes from India. Muscovite or ruby mica and bioryte or pink mica is present in igneous or metamorphic rocks in our country. The mica deposits in India are quite safe because of low usage of mica in India. Mica deposits are found in Nellore, Guntur and Kadappa of Andhra Pradesh, in Bhilwara, Ajmer, Jaipur, Udaipur and Tonk of Rajasthan, in Koderma, Giridih, Dhanbad, Bokaro and Palamu of Jharkhand, in Aurangabad, Gaya, Navada, and Begusarai in Bihar, and also in Tamil Nadu (Coimbatore and Madurai) and Madhya Pradesh (Balaghat and Chhindwara). Andhra Pradesh is the largest producer of mica followed by Rajasthan and Jharkhand.
