May 25, 2024 · Mica, any of a group of hydrous potassium, aluminum silicate minerals. It is a type of phyllosilicate, exhibiting a two-dimensional sheet or ...

Micas occuring as large crystals are often called books; these may measure up to several metres across. In most rocks, micas occur as irregular tabular masses ...

Muscovite, abundant silicate mineral that contains potassium and aluminum. Muscovite is the most common member of the mica group.

Mica is the name given to a group of silicate minerals that contain atoms of aluminum, oxygen, and silicon bonded into flat layers like the leaves of a book.

Micas are a group of silicate minerals whose outstanding physical characteristic is that individual mica crystals can easily be split into extremely thin ...

Biotite, a silicate mineral in the common mica group. It is abundant in metamorphic rocks (both regional and contact), in pegmatites, and also in granites ...

White mica, fine-grained variety of any of the silicate minerals muscovite, paragonite, or talc.

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.