Rock Identifier
Conglomerate (Clastic Sedimentary Rock) — sedimentary
sedimentary

Conglomerate

Clastic Sedimentary Rock

AI-generated identification · may be incorrect

Hardness varies from 6-7 depending on clast composition, typically multicolored with rounded gravel-sized clasts embedded in a finer matrix, dull luster.

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Physical properties

Hardness varies from 6-7 depending on clast composition, typically multicolored with rounded gravel-sized clasts embedded in a finer matrix, dull luster.

Formation & geological history

Formed by the consolidation and cementation of gravel and rounded rock fragments transported by high-energy water currents, often in riverbeds or beaches.

Uses & applications

Used primarily in the construction industry as crushed stone for road base and concrete aggregate.

Geological facts

Conglomerate is sometimes referred to as 'puddingstone' due to its appearance resembling bits of fruit suspended in a pudding.

Field identification & locations

Easily identified by its distinctive texture of visible, rounded pebbles bonded within a finer sand or clay matrix; found worldwide.