sedimentary
Flagstone
Sedimentary Sandstone / Flagstone
Mohs hardness of 6 to 7 for quartz-rich varieties; colors range from tan, brown, and grey to reddish; dull to earthy luster; fine to medium-grained texture.
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Physical properties
Mohs hardness of 6 to 7 for quartz-rich varieties; colors range from tan, brown, and grey to reddish; dull to earthy luster; fine to medium-grained texture.
Formation & geological history
Formed through the accumulation, compaction, and cementation of mineral particles or rock fragments, often in riverbeds, floodplains, or shallow marine environments over millions of years.
Uses & applications
Widely used for paving, patios, walkways, wall cladding, and general outdoor landscaping construction.
Geological facts
Flagstone is a generic term used for flat slabs of stone that can be easily split from a larger rock mass along bedding planes.
Field identification & locations
Easily identified by its flat, layered appearance and natural cleft surface; commonly sourced from sedimentary quarries worldwide.
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