sedimentary
Sandstone
Clastic Sedimentary Rock
AI-generated identification · may be incorrectHardness varies from 6 to 7 on the Mohs scale depending on cementation; colors include brown, tan, yellow, and red; luster is typically dull or earthy; composed mainly of quartz and feldspar grains.
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Physical properties
Hardness varies from 6 to 7 on the Mohs scale depending on cementation; colors include brown, tan, yellow, and red; luster is typically dull or earthy; composed mainly of quartz and feldspar grains.
Formation & geological history
Formed through the accumulation, compaction, and cementation of mineral particles or rock fragments, predominantly quartz, in marine, desert, or river environments over millions of years.
Uses & applications
Widely used in construction as a building and paving material, for decorative facing, and historically for grindstones.
Geological facts
Sandstone formations often display distinct parallel layering known as bedding and can store vast amounts of groundwater as aquifers.
Field identification & locations
Identified in the field by its visible granular texture resembling sandpaper; commonly found in sedimentary basins worldwide.
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