sedimentary
Sandstone Pebble
Sedimentary Rock (Quartz Arenite)
Hardness of 6-7 on the Mohs scale, predominantly brown to tan color, dull or earthy luster, clastic texture composed mostly of quartz grains, specific gravity of 2.2-2.8.
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Physical properties
Hardness of 6-7 on the Mohs scale, predominantly brown to tan color, dull or earthy luster, clastic texture composed mostly of quartz grains, specific gravity of 2.2-2.8.
Formation & geological history
Formed from the accumulation, compaction, and cementation of mineral particles or rock fragments, typically in desert, river, or beach environments over millions of years.
Uses & applications
Used in construction, building stone, masonry, landscaping, and polishing as grindstones.
Geological facts
Sandstone can store large quantities of water, petroleum, and natural gas, making it one of the most important reservoir rocks in geology.
Field identification & locations
Commonly found in riverbeds, coastlines, and sedimentary basins worldwide. Identified by its visible sandy texture and grainy feel.
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Arenite (if sandstone)
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Generic Pebble / Rock Fragment
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Sedimentary Sandstone
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Banded Siltstone / Mudstone Pebble
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