sedimentary
Gravel and Sediment Sample
Mixed clastic sediment
Composed of various mineral fragments and small rock pebbles, hardness varies by mineral (quartz is 7 on Mohs scale), multi-colored, varied luster, irregular angular and rounded shapes.
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Physical properties
Composed of various mineral fragments and small rock pebbles, hardness varies by mineral (quartz is 7 on Mohs scale), multi-colored, varied luster, irregular angular and rounded shapes.
Formation & geological history
Formed through weathering, erosion, transport, and deposition of pre-existing rocks by water, wind, or ice over geological time.
Uses & applications
Used in construction, road surfacing, concrete production, and geological or educational study.
Geological facts
Gravel represents accumulated debris from the breakdown of diverse geological formations and is one of the most widely used industrial materials globally.
Field identification & locations
Found extensively in riverbeds, glacial deposits, beaches, and alluvial fans. Useful for studying local geology and provenance.
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