Many minerals used in commercial products owe their value and popularity at least in part to their luster. The best example is gold. It has a highly reflective metallic luster that resists tarnish. That beautiful luster makes gold the perfect metal for jewelry manufacturing. Today, most of the world’s gold is made into jewelry.
Muscovite mica is another mineral that is used commercially because of its luster. Its highly reflective, eye-catching pearly luster, along with its ability to be ground into tiny, flat flakes, makes it the perfect additive in a variety of products. Minute flakes of muscovite bring a glittery appearance to cosmetics, paints, plaster, plastics, tile, pottery glazes, and many other products that people use or see every day.