This mineral is the earth’s silver diary, written on thin pages of frost! Mica is a group of naturally occurring sheet phyllosilicate minerals known for their perfect basal cleavage, allowing them to split into extremely thin, flexible, and elastic layers. It is used in electrical insulation, cosmetics, and paints. Among the 37 distinct types of mica minerals, the most common commercial varieties include Muscovite (colorless, silvery, or light green), Phlogopite (yellow-brown to dark brown), Biotite (dark green, brown, or black), Lepidolite (pinkish-purple, known for containing lithium). Micas are translucent to opaque with a distinct vitreous or pearly luster. Deposits of mica tend to have a flaky or platy appearance. Mica is found worldwide in igneous, metamorphic, and sedimentary rocks, typically concentrated in granitic pegmatites and schists. In India, high-quality mica occurs in the “Mica Belt” that spans the states Jharkhand, Bihar, Andhra Pradesh and Rajasthan.