Microcline is a mineral that belongs to the group of feldspar minerals. It is a dioctahedral tectosilicate that forms transparent to translucent crystals. Microcline has a triclinic crystal system and a color range of white, yellow, pink, or green. It also exhibits optical properties such as birefringence and pleochroism. Some synonyms for microcline include potassium feldspar, K-feldspar, and orthoclase. These synonyms are used interchangeably in geology and mineralogy fields to describe the same mineral. Microcline is commonly found in granites, pegmatites, and metamorphic rocks. Its unique properties make it a valuable mineral for various industrial and ornamental applications.