sedimentary
Sandstone
Clastic Sedimentary Rock
AI-generated identification · may be incorrectHardness varies from 6 to 7 on the Mohs scale depending on cementation; typically tan, brown, yellow, or red; dull to earthy luster; composed mostly of quartz grains.
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Physical properties
Hardness varies from 6 to 7 on the Mohs scale depending on cementation; typically tan, brown, yellow, or red; dull to earthy luster; composed mostly of quartz grains.
Formation & geological history
Formed through the accumulation, compaction, and cementation of mineral particles or rock fragments, predominantly quartz sand, in marine, lake, or desert environments.
Uses & applications
Widely used in construction as a building material, for paving, and in the manufacture of glass and abrasives.
Geological facts
Sandstone formations can act as excellent aquifers and reservoirs for oil and natural gas due to their porous nature.
Field identification & locations
Identified by its visible sand-sized grains and gritty texture; commonly found in ancient riverbeds, deserts, and coastal cliffs worldwide.
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