sedimentary
Fossiliferous Limestone
Biogenic Sedimentary Rock (CaCO3)
AI-generated identification · may be incorrectHardness 3 on Mohs scale, color ranges from tan to grey, earthy to vitreous luster, amorphous to microcrystalline structure with visible fossil fragments.
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Physical properties
Hardness 3 on Mohs scale, color ranges from tan to grey, earthy to vitreous luster, amorphous to microcrystalline structure with visible fossil fragments.
Formation & geological history
Formed through the accumulation and cementation of organic carbonate remains like shells and coral in shallow marine environments over millions of years.
Uses & applications
Used widely in construction, production of cement, agricultural soil conditioning, and by fossil collectors.
Geological facts
Limestone often preserves ancient marine life, providing crucial insight into Earth's evolutionary history and past climates.
Field identification & locations
Identify in the field by its reaction to dilute hydrochloric acid (effervescence) and visible embedded fossil structures; found globally in sedimentary basins.
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