Mica, any of a collection of hydrous potassium, aluminum silicate minerals . It is a kind of phyllosilicate, showing a -dimensional sheet or layer structure. Mica 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 most common include: purple lepidolite, black biotite, brown phlogopite and clear muscovite. Mica is the term for a large group of sheet silicates that can be parted into flexible or brittle sheets. Includes the True Micas or Common Micas (with monovalent interlayer cations, e.g. muscovite, paragonite, ephesite) and the Brittle Mica s (with divalent interlayer cations, e.g. margarite, clintonite). Also known as the " mica family". Mica is a naturally occurring mineral known for its sheet-like structure and shiny appearance, commonly used in electronics, cosmetics, and as a thermal insulator. It consists of silicate minerals that are stable at high temperatures, making it valuable in industrial applications. With its ability to reflect light and resist heat, mica has become an essential component in both modern technology and beauty products.
