Silica
Silicon dioxide, also known as silica, is an oxide of silicon with the chemical formula SiO2, most commonly found in nature as quartz In many parts of the world, silica is the major constituent of sand.
Silicon dioxide, also known as silica, is an oxide of silicon with the chemical formula SiO2, most commonly found in nature as quartz In many parts of the world, silica is the major constituent of sand.