sedimentary
Pea Gravel
Polymictic Gravel / Aggregate
AI-generated identification · may be incorrectHardness varies by mineral (mostly quartz at Mohs 7), multicolored (gray, brown, tan, white), vitreous to dull luster, rounded clast structure, specific gravity ~2.65.
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Physical properties
Hardness varies by mineral (mostly quartz at Mohs 7), multicolored (gray, brown, tan, white), vitreous to dull luster, rounded clast structure, specific gravity ~2.65.
Formation & geological history
Formed via the weathering and aqueous erosion of various parent rocks, subsequently rounded through transport in rivers and streams over thousands to millions of years.
Uses & applications
Widely used in construction for concrete aggregate, landscaping pathways, drainage systems, and decorative ground cover.
Geological facts
Pea gravel gets its name because individual stones are roughly the size of a garden pea, typically ranging from 1/4 to 3/8 inch in diameter.
Field identification & locations
Easily identified by its small, smooth, rounded stones mixed into soil or landscaping beds. Commonly sourced from riverbeds and glacial deposits worldwide.
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