what uses are there for the mineral Feldspar? | Yoo Answers
Apr 27, 2010· The glass industry prefers to uses mainly orthoclase (potash feldspar) because it tends the melt to clear glass while albite (soda feldspar) tends the melt to a translucent glass. In the preparation of glazes the fine powder of feldspar is mixed with silica powder in a thin slurry. The fired up goods are dipped into the slurry and fired again.