Feldspar- Feldspar is a composition of framework tectosilicates. Feldspar is a common raw material used in the making glass, ceramics, paint and plastics. From feldspar we get many gemstones, so it is also an important mineral in jewelry industry and gemstone world. The countries where feldspar is extracted are Italy, Turkey, China, Thailand, United States, Iran, Spain, France, Japan, Poland, India, Czech Republic, South Korea, Mexico, Malaysia, Argentina, Egypt, Vietnam, Portugal, Ukraine, Algeria, Russia, Germany, Brazil, South Africa, Australia, Colombia, Bulgaria, Ecuador, Venezuela, Sri Lanka, Morocco, Saudi Arabia, Sweden, Finland, Indonesia, Norway, Macedonia, Romania and USA.