India is at the first place in mica production in the world. 70 to 80% mica of the world is mined in India. Here, muscovite (ruby mica) and biotite (pink mica) is gathered from ingenious and metamorphic rocks. It can withstand high temperature and is of non-conductive shining metal with foliation layers. It is utilised in the electrical industry, aircraft industry and military equipment industry. Mica in India is in a protected state because there is less consumption of mica deposits. Mica deposits are present in Nellore, Guntur, Cuddapah, in Andhra Pradesh (first in-country), Bhilwara, Ajmer, Jaipur, Udaipur and Tonk in Rajasthan (second in-country), Hazaribag, Kodarma, Giridih, Dhanbad, Bokoro and Palamu in Jharkhand (third in-country) Aurangabad, Gaya, Nawada and Begusarai in Bihar, Madurai and Coimbatore, in Tamil Nadu and Balaghat and Chhindwara in Madhya Pradesh.