For example, iron or carbon can be added to the mixture to make the glass a different color. The main ingredient in glass is sand. This is because sand is made up mostly of a substance called silica, which is need to make glass. Silica sand comes from various countries including Australia, Indonesia, Malaysia, Vietnam, China, India and Egypt.
RAGHAV PRODUCTIVITY ENHANCERS from Jaipur, Rajasthan (India) is a manufacturer, supplier and exporter of White Iron Free Silica Sand, Silica Sand at reasonable price.