noun🔗ShareMicaAny of a group of hydrous aluminosilicate minerals characterized by highly perfect cleavage, so that they readily separate into very thin leaves, more or less elastic."The artist used glitter made with small flakes of mica to make the painting sparkle. "L'artiste a utilisé des paillettes faites de petits flocons de mica pour faire scintiller la peinture.materialgeologymineralsubstanceChat with AIVocabulary GamePractice Reading