Orthoclase- Orthoclase is the tectosilicate mineral, which forms igneous rock. We get gems like moonstone and colorless stone is called labradorite from orthoclase and Microcline and Sanidine minerals are the polymorphous. The deposits of orthoclase are in Czech Republic, Italy, Spain, Switzerland, Russia, Tanzania and Mexico. Orthoclase mineral is used as raw material in ceramic and glasses, the gemstone moonstone is used to create jewelry.