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Feature
Electrical Apparatus, Electric Heating Appliances,
Mica is found in nature in the form of crystals. It occurs as seams in hard rock, usually pegmatite or granite. Mica is a hydrated alumina-silicate. Compound of Iron, sodium, potassium, etc may also be present in Mica. Mica is found in two types. The most important forms are MUSCOVITE and other is a PHLOGOPITE. Muscovite is a colorless, but also has Ruby, Green or other tints. Phlogopite usually has a very dark color from amber, gold and brown to almost black, though it sometimes occurs in very light colors also. The electrical properties of Muscovite, which is one of the best insulating materials, are superior to those of phlogopite, and in addition it is somewhat stronger mechanically and is harder and more flexible. The Phlogopite is softer than Muscovite and has poorer electrical properties and electrical resistance.
Giridih, Jharkhand, India
