Later, with the development of science and technology, people gradually realized that mica minerals have high insulation, high temperature resistance, strong acid and alkali resistance, and mica also began to enter building materials, fire, plastics, paper, rubber, pearlite pigments and other industries. These are mainly Muscovite and phlogopite.

Purity: Higher purity golden mica is priced at a premium, particularly when used in cosmetics or high-grade industrial applications. Impurities lower the value of the product, but for some industrial purposes, lower-purity mica may suffice.