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Pebble look-alikes

Sedimentary rock fragment (likely Quartzite or Chert)

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Several rocks and minerals can be confused with Pebble. 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

Granule

Clastic sedimentary particle (2-4 mm)

Also known as: Small pebble

Cobble

Clastic sedimentary particle (64-256 mm)

Also known as: Large pebble

Boulder

Clastic sedimentary particle (>256 mm)

Also known as: Very large rock fragment

Sand

Clastic sedimentary particle (0.0625-2 mm)

Also known as: Fine aggregate

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