sedimentary
Generic Pebble
Lithic Fragment
Hardness varies around 6-7 on Mohs scale depending on mineral content; color is typically earth-toned brown or gray; luster is dull to earthy; non-crystalline amorphous structure.
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Physical properties
Hardness varies around 6-7 on Mohs scale depending on mineral content; color is typically earth-toned brown or gray; luster is dull to earthy; non-crystalline amorphous structure.
Formation & geological history
Formed through the physical weathering and erosion of parent rocks, transported by water or wind, and deposited in sedimentary environments.
Uses & applications
Used in general landscaping, aggregate for concrete, and walkways.
Geological facts
Small rock fragments like this are ubiquitous in almost all terrestrial environments and represent the continuous cycle of rock erosion and deposition.
Field identification & locations
Found widely across riverbeds, beaches, and soil; identified by its smoothed, rounded edges resulting from transport.
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