sedimentary
Sandstone
Quartzose Sandstone
AI-generated identification · may be incorrectHardness of 6-7 on the Mohs scale due to quartz content. Color ranges from yellow to brown, red, and tan. Luster is typically dull or earthy with a clastic, granular crystal structure.
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Physical properties
Hardness of 6-7 on the Mohs scale due to quartz content. Color ranges from yellow to brown, red, and tan. Luster is typically dull or earthy with a clastic, granular crystal structure.
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 for building facades, paving stones, and masonry, as well as an abrasive and reservoir rock for groundwater and petroleum.
Geological facts
Sandstone formations like the Flatirons near the provided Boulder, Colorado coordinates are iconic geological landmarks. The distinct reddish-brown color often comes from iron oxide cements.
Field identification & locations
Easily identified in the field by its gritty texture and visible sand-sized grains. Common worldwide in sedimentary basins and mountainous uplift areas.
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