Silica is the name given to a group of minerals composed of silicon and oxygen, the two most abundant elements in the earth's crust.
Sand is the general term for broken down granules of minerals or rocks, technically between about one-sixteenth of a millimeter to two millimeters in diameter, falling between silt and gravel in the spectrum of sizes.
Silica is another name for silicon dioxide, SiO2, of which quartz is a specific latticed structure.
Sand with particularly high silica levels that is used for purposes other than construction is referred to as Silica Sand or Industrial Sand.
Industrial uses of silica sand depend on its purity and physical characteristics. Some of the more important physical properties are: grain size and distribution, grain shape, sphericity, grain strength and refractoriness.
Silica sands have a large number of industrial uses depending on their characteristics.
• production of glass
• foundry
• ceramics
• sandblasting and other abrasives
• building products
• filler and extender
• production of silicon and silicon carbide
• pigments
• hydraulic fracturing and propping in the oil industry
• ultra high silica products in the electronic and fibre optic industries, fused silica, silicone products
• water filtration
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