Lépidolite goldenThese specimens are covered with dozens of gold flakes. These sheet silicates form in distinct layers. Micas are quite light, relatively soft, flexible, and produce a somewhat reflective appearance. Lepidolite comes from the Greek word lepidos, meaning "scale," which alludes to the scaly appearance commonly found in the mineral. Lepidolite belongs to the mica group, which produces the pearly, flaky appearance. Micas are quite lightweight and