sedimentary
Quartz Sand (Beach Sand)
Silicon Dioxide (SiO2)
Hardness around 7 on Mohs scale for quartz grains, translucent to light tan color, vitreous to dull luster, granular structure, sub-angular to rounded grain shape.
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Physical properties
Hardness around 7 on Mohs scale for quartz grains, translucent to light tan color, vitreous to dull luster, granular structure, sub-angular to rounded grain shape.
Formation & geological history
Formed through long-term weathering and erosion of granitic or quartz-bearing rocks, transported by rivers, waves, or wind, and deposited in beach or riverbed environments.
Uses & applications
Used extensively in construction (concrete, mortar), glassmaking, water filtration, sandblasting, and recreation.
Geological facts
Quartz is one of the most resistant minerals to chemical and physical weathering, which is why most inland and beach sands globally consist predominantly of quartz grains.
Field identification & locations
Identified as loose, granular mineral grains ranging in size from 0.0625 to 2 mm. Commonly found on beaches, riverbanks, and deserts worldwide.
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