Mica comes in a variety of colours and has been used to create pearlescent or glittering paint pigments. It is a type of phyllosilicate, exhibiting a two-dimensional sheet or layer structure. Among the principal rock-forming minerals, micas are found in all three major rock varieties—igneous, sedimentary, and metamorphic. It helps us recognise flaws without self-condemnation, so we are able to effectively address negative personality traits.