sedimentary
Generic Pebble / Rock Fragment
Lithic fragment / Weathered rock
Hardness varies based on mineral composition (typically Mohs 5-7), earthy or dull luster, irregular crystal structure, light to dark brownish-gray color.
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Physical properties
Hardness varies based on mineral composition (typically Mohs 5-7), earthy or dull luster, irregular crystal structure, light to dark brownish-gray color.
Formation & geological history
Formed through the mechanical and chemical breakdown of larger pre-existing rocks, followed by transport and weathering in aquatic or terrestrial environments.
Uses & applications
Primarily decorative, used in landscaping, or as part of sedimentary aggregate materials.
Geological facts
Small rock fragments and pebbles are ubiquitous in nature and serve as fundamental building blocks of sedimentary basins and soil formations.
Field identification & locations
Commonly found in riverbeds, beaches, and soil layers; identified by its rounded or weathered shape from transport.
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