1, white mica: also known as orthoclase mica, a white or colorless mica mineral whose main component is sodium aluminum silicate.
2, gold mica: a black or dark brown mica mineral, the main component is magnesium iron aluminum silicate.
3, iron mica: refers to the mica mineral rich in iron, containing Musonoi and other elements. Mussonoyite is a silicate-containing minerals, belonging to a kind of mica minerals, the chemical composition is usually potassium aluminum silicate, and contains a small amount of iron, lithium, sodium, nickel and molybdenum and other elements.