sedimentary
Fossiliferous Limestone
Biogenic Sedimentary Rock (Calcium Carbonate, CaCO3)
AI-generated identification · may be incorrectHardness of 3 on the Mohs scale, earthy to vitreous luster, yellowish-brown to gray color, and a microcrystalline or clastic crystal structure.
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Physical properties
Hardness of 3 on the Mohs scale, earthy to vitreous luster, yellowish-brown to gray color, and a microcrystalline or clastic crystal structure.
Formation & geological history
Formed through the accumulation and compaction of organic carbonate debris and shelly fossils in shallow marine environments over millions of years.
Uses & applications
Utilized widely in construction aggregate, Portland cement manufacturing, and agricultural soil conditioning.
Geological facts
Limestone often preserves ancient marine ecosystems and can form massive geological landmarks like caves and cliffs.
Field identification & locations
Readily identified by its reaction to dilute hydrochloric acid, producing carbon dioxide effervescence, and visible fossil fragments.
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