Sand look-alikes
Quartz sand (primarily SiO2)
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Open the appSeveral rocks and minerals can be confused with Sand. Below are documented look-alikes and the features that tell them apart. Never rely on a single feature. Always check multiple properties.
Similar rocks to compare
Feldspathic Sand
Feldspar (primarily KAlSi3O8, NaAlSi3O8, CaAl2Si2O8)
Also known as: Arkose Sand
Calcareous Sand
Calcium Carbonate (primarily CaCO3)
Also known as: Biogenic Sand, Shell Sand
Volcanic Sand
Volcanic Glass, Pyroxene, Olivine
Also known as: Lithic Sand
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