sedimentary
Sandstone (Banded)
Sedimentary Clastic Rock
Hardness varies from 6 to 7 depending on quartz content, color ranges from brown to tan and grey with distinct dark banding, luster is dull to earthy, crystal structure is granular/clastic.
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Physical properties
Hardness varies from 6 to 7 depending on quartz content, color ranges from brown to tan and grey with distinct dark banding, luster is dull to earthy, crystal structure is granular/clastic.
Formation & geological history
Formed through the accumulation, compaction, and cementation of mineral particles or rock fragments, predominantly quartz and feldspar, over millions of years in various environments like deserts, rivers, and beaches.
Uses & applications
Used widely in construction, dimension stone, masonry, and as a decorative landscaping stone.
Geological facts
Banded patterns in sandstone are often caused by iron oxide staining or varying mineral deposition along groundwater flow paths over geological time.
Field identification & locations
Easily identified by its gritty texture and visible sand-sized grains. Commonly found worldwide in sedimentary basins, riverbeds, and desert regions.
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