Mica is a mineral name given to a group of minerals that are physically and chemically similar.  They are all silicate minerals, known as sheet silicates because they form in distinct layers.  Micas are fairly light and relatively soft, and the sheets and flakes of mica are flexible. Mica is heat-resistant and does not conduct electricity. 

There are 37 different mica minerals. The two most common mica used worldwide includes: 

Phlogopite Mica and Muscovite Mica

Muscovite Mica: Muscovite Mica is the most common mineral of the mica’s own family. It is an essential rock-forming mineral present in igneous, metamorphic, and sedimentary rocks. Like other micas, it with no trouble cleaves into skinny transparent sheets. Muscovite sheets have a pearly to vitreous lustre on their floor. If they’re held up to the light, they’re obvious and almost colourless, however, maximum have a mild brown, yellow, inexperienced, or rose-colour tint.

Phlogopite Mica: Phlogopite Mica is also a common form of mica, and it is usually distinguished by its brownish-red colour. Phlogopite, like the other important mica’s, can come in very large crystal sheets. Thin sheets can be peeled off as layers, and thin layers maintaining an interesting metallic-looking transparency.