sand grains

Tiny shore fragments

Sand grains are the individual particles that make up sand—tiny pieces of rock, mineral, shell, or coral worn down by weathering and erosion.

The term emphasizes sand as discrete units rather than a mass: Each sand grain under the microscope revealed unique colors and shapes.

Geologists classify sand grains by size, typically between 0.1 and 2 millimeters in diameter.

Related
  • beachSandy waterside margin
  • desertTo leave behind completely
  • dunesWind-formed sand ridges
  • silicaSilicon dioxide compound
  • gritDetermination or abrasive particles

coarse · fine · hourglass · particles · quartz · shore · windblown · texture · sift · slip through fingers · granular · erosion · waves · sea glass · footprints · castles · dusty · scattered

Categories
Opposites
particle size

sand grainsboulders

Large rounded stones

rocks · bedrock · cobblestones · cobbles · solid rock

geological aggregation

sand grainsbedrock

Solid stone underground

solid rock · rock formations · mountain · cliff face · granite slab

Family

sand, grains, sands, grain, sandy, sandier, sandiest, sanded, sanding

Familiarity
Top 200,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G