sedimentary
Fossiliferous Limestone
Bioclastic Limestone (CaCO3)
AI-generated identification · may be incorrectHardness of 3 on the Mohs scale, typically gray to tan in color, with a dull to earthy luster and visible fossil fragments embedded within a fine-grained carbonate matrix.
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Physical properties
Hardness of 3 on the Mohs scale, typically gray to tan in color, with a dull to earthy luster and visible fossil fragments embedded within a fine-grained carbonate matrix.
Formation & geological history
Formed in marine environments through the accumulation and compaction of shell, coral, algal, and other skeletal debris over millions of years.
Uses & applications
Widely used in the construction industry as crushed stone for road base, concrete aggregate, and in the production of Portland cement.
Geological facts
This rock often contains diverse marine fossils from various geological eras, making it a favorite for amateur paleontologists.
Field identification & locations
Identify in the field by its reaction to dilute hydrochloric acid (fizzing) and the visual presence of fossil fragments embedded in the matrix.
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