sedimentary
Fossiliferous Limestone
Calcareous Sedimentary Rock (CaCO3)
AI-generated identification · may be incorrectHardness of 3 on Mohs scale, varying in color from gray to tan, with a dull to earthy luster and prominent visible fossil molds or shells.
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Physical properties
Hardness of 3 on Mohs scale, varying in color from gray to tan, with a dull to earthy luster and prominent visible fossil molds or shells.
Formation & geological history
Formed in marine environments through the accumulation and compaction of calcium carbonate skeletal fragments, shells, and coral over millions of years.
Uses & applications
Used widely in the construction industry as crushed stone, aggregate, and dimension stone, as well as in cement production and agricultural lime.
Geological facts
Limestone often preserves ancient marine life, providing key geological data about prehistoric shallow seas and climate conditions.
Field identification & locations
Easily identified by its reaction to dilute hydrochloric acid, which causes it to fizz vigorously, and by the presence of embedded fossils.
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