SILICA SAND Silica Sand Applications Silica sands have a large number of industrial uses depending on their characteristics. 1. Production of glass. 2. Foundry sand. 3. Ceramics. 4. Sandblasting and other abrasives. 5. building products. 6. Filler and extender. 7. Production of silicon and silicon compounds. 8. Pigments. 9. Hydraulic fracturing and propping in the oil industry. 10. Ultra-high silica products in the electronic and fiber optic industries, fused silica. 11. Water filtration. CRYSTAL MOUNT CO. FOR MINING & SUPPLYING explored and produced many types of high-quality silica sand used for glass making, ceramic, foundry, sport yard and Water filtration.