Glass manufacturing needs high-purity, low-iron silica sand (99.5%+ SiO₂, Fe₂O₃ below 0.02%) so the finished glass is clear and strong. Shiv Mines and Minerals supplies glass-grade silica sand for container, flat, specialty and solar glass from its Karauli, Rajasthan mines.
Why glass needs high-purity silica
Silica is the main raw material in glass. Purity and iron content directly control the clarity, colour and strength of the finished glass, so glassmakers specify very high SiO₂ and very low Fe₂O₃.
Glass types we supply for
Our glass-grade sand suits a range of glass production:
- Container glass — bottles and jars
- Flat glass — windows, mirrors, architectural glass
- Specialty and optical glass
- Solar glass for photovoltaic panels