sedimentary
Fossiliferous Limestone
Biogenic Sedimentary Rock (CaCO3)
AI-generated identification · may be incorrectHardness of 3 on the Mohs scale, colors range from gray to tan, dull to earthy luster, and reacts strongly with hydrochloric acid.
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Physical properties
Hardness of 3 on the Mohs scale, colors range from gray to tan, dull to earthy luster, and reacts strongly with hydrochloric acid.
Formation & geological history
Formed through the accumulation and cementation of carbonate shell fragments and marine organism remains in shallow marine environments over millions of years.
Uses & applications
Used extensively in construction, cement production, agriculture for soil neutralization, and as decorative dimension stone.
Geological facts
Many fossiliferous limestones are packed with ancient marine fossils like crinoids, brachiopods, and bryozoans visible on weathered surfaces.
Field identification & locations
Identify in the field by its abundant visible fossil fragments and strong effervescence when tested with weak acid; found worldwide in ancient sea basins.
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