sedimentary
Fossiliferous Limestone
Calcium carbonate (CaCO3) with fossil inclusions
AI-generated identification · may be incorrectHardness of 3 on the Mohs scale, typically gray to tan in color, dull to earthy luster, and reacts with hydrochloric acid.
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Physical properties
Hardness of 3 on the Mohs scale, typically gray to tan in color, dull to earthy luster, and reacts with hydrochloric acid.
Formation & geological history
Formed from the accumulation and compaction of organic debris like shell and coral fragments in marine environments over millions of years.
Uses & applications
Used in construction as aggregate, dimension stone, and in the production of Portland cement and lime.
Geological facts
Limestone often preserves ancient marine life, providing key insights into Earth's evolutionary history and past climatic conditions.
Field identification & locations
Easily identified by its characteristic reaction with acid and visible fossil fragments; commonly found in quarries and sedimentary rock layers worldwide.
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