Quartz Sand vs. Silica Sand: What’s the Difference?

1
Quartz Sand vs. Silica Sand
Choosing between quartz and silica sand impacts
product quality. This guide explores composition,
properties, and performance.
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Composition Differences
Silica Sand
Quartz Sand
Primarily silicon dioxide (SiO2).
Usually 99.5 silicon dioxide.
May contain trace elements.
Minimal feldspar and minerals.
3
Silica Sand Composition
Silicon Dioxide
1
Over 95 purity.
Trace Minerals
2
Less than 0.1 in high-grade deposits.
Iron Oxide
3
Below 0.06 in premium grades.
Aluminum Oxide
4
Under 0.5-1 in applications.
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Quartz Sand Composition
Silicon Dioxide
99.5 purity.
Minimal Minerals
Few feldspars present.
Weathering
Enhances silica concentration.
Processing
Removes impurities.
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Physical Property Differences
Hardness
Grain Shape
Resistance
Quartz Exceptional on Mohs scale.
Silica Rounded to sub-rounded.
Quartz Strong against weathering.
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Quartz Sand Properties
Hardness
1
Exceptional levels on Mohs scale.
Resistance
2
Strong against weathering.
Grain Size
3
Consistent within specifications.
Grain Shape
4
Angular to sub-angular.
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Silica Sand Properties
Grain Shape
Rounded to sub-rounded.
Resistance
Moderate to physical wear.
Grain Size
Varies considerably.
Surface Texture
Smooth to slightly rough.
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Performance Differences
Resistance
Chemical Reactivity
Quartz Superior against breakdown.
Quartz Resistant to acidic solutions.
Silica Gradual wear patterns.
Silica Sensitive to alkaline.
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