운모 is a type of mineral known as mica, which is characterized by its layered structure. It is commonly found in igneous and metamorphic rocks and is known for its ability to split into thin, flexible sheets. This property makes it useful in various applications, including electronics and cosmetics. In addition to its industrial uses, 운모 is also valued in the field of geology. It can help scientists understand the conditions under which certain rocks formed. The presence of 운모 in a rock sample can indicate specific environmental factors during its formation, making it an important mineral for geological studies.