sedimentary
Fossiliferous Limestone
Biogenic Sedimentary Rock (Calcium Carbonate, CaCO3)
AI-generated identification · may be incorrectHardness of 3 on Mohs scale; gray to beige color; dull to earthy luster; amorphous crystal structure composed of calcite.
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Physical properties
Hardness of 3 on Mohs scale; gray to beige color; dull to earthy luster; amorphous crystal structure composed of calcite.
Formation & geological history
Formed through the accumulation and compaction of marine skeletal fragments over millions of years.
Uses & applications
Used in construction, cement production, agriculture, and as a decorative building stone.
Geological facts
Often contains well-preserved ancient marine fossils such as brachiopods, crinoids, and bryozoans visible on weathered surfaces.
Field identification & locations
Readily identified by its reaction to dilute hydrochloric acid and visible fossil fragments; found globally in ancient marine sedimentary basins.
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