sedimentary
Conglomerate
Clastic Sedimentary Rock
AI-generated identification · may be incorrectHardness varies (6-7 for quartz pebbles), multicolored matrix, dull to vitreous luster, clastic crystal structure, poor cleavage, specific gravity around 2.5-2.7.
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Physical properties
Hardness varies (6-7 for quartz pebbles), multicolored matrix, dull to vitreous luster, clastic crystal structure, poor cleavage, specific gravity around 2.5-2.7.
Formation & geological history
Formed by the consolidation and cementation of gravel-sized rounded clasts in high-energy environments like rivers or beaches.
Uses & applications
Used as crushed stone in construction, road aggregate, and decorative landscaping.
Geological facts
Conglomerates often provide clues about ancient river flows and high-energy depositional environments from millions of years ago.
Field identification & locations
Easily identified in the field by its distinct rounded pebbles embedded in a finer-grained matrix. Found worldwide.
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