sedimentary
Fossiliferous Limestone
Biogenic Sedimentary Rock (CaCO3)
AI-generated identification · may be incorrectHardness is 3 on the Mohs scale, color ranges from tan to grey, luster is dull to earthy, and it reacts strongly with acid due to calcite composition.
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Physical properties
Hardness is 3 on the Mohs scale, color ranges from tan to grey, luster is dull to earthy, and it reacts strongly with acid due to calcite composition.
Formation & geological history
Formed through the accumulation and cementation of skeletal fragments of marine organisms over millions of years in shallow marine environments.
Uses & applications
Used primarily in construction, as crushed stone for road base, in the production of cement, and for educational study or fossil collecting.
Geological facts
Limestone often preserves ancient marine life like brachiopods and crinoids, providing a detailed history of prehistoric aquatic ecosystems.
Field identification & locations
Identify it by its carbonate composition and visible shell fragments; commonly found in sedimentary basins and ancient sea beds worldwide.
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