sedimentary
Sandstone and Conglomerate pebbles
Sedimentary clastic rock
Hardness varies from 6 to 7 depending on quartz content, color ranges from tan, gray, to reddish-brown, dull luster, granular texture, composed of cemented mineral grains or rock fragments.
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Physical properties
Hardness varies from 6 to 7 depending on quartz content, color ranges from tan, gray, to reddish-brown, dull luster, granular texture, composed of cemented mineral grains or rock fragments.
Formation & geological history
Formed by the accumulation, compaction, and cementation of mineral particles or rock fragments, typically in marine, fluvial, or desert environments over millions of years.
Uses & applications
Used locally for landscaping, gravel, and educational or casual rock collecting.
Geological facts
Sandstone and related clastic sedimentary rocks often preserve ancient ripple marks and fossil footprints.
Field identification & locations
Commonly found in riverbeds, beaches, and sedimentary rock formations worldwide. Identified by their visible granular texture.
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Sedimentary Sandstone
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Banded Siltstone / Mudstone Pebble
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