sedimentary
Fossiliferous Limestone
Biogenic Sedimentary Rock (CaCO3)
AI-generated identification · may be incorrectHardness 3 on Mohs scale, color ranges from grey to tan, dull to earthy luster, composed mainly of calcite with visible fossil impressions like crinoids or brachiopods.
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Physical properties
Hardness 3 on Mohs scale, color ranges from grey to tan, dull to earthy luster, composed mainly of calcite with visible fossil impressions like crinoids or brachiopods.
Formation & geological history
Formed through the accumulation and compaction of organic carbonate debris and skeletal fragments in shallow marine environments over millions of years.
Uses & applications
Used extensively in construction, production of lime and cement, and as a decorative building stone.
Geological facts
Many famous historical structures, including the Great Pyramids of Giza, are constructed largely from limestone blocks.
Field identification & locations
Identified by effervescence when cold dilute hydrochloric acid is applied; commonly found in sedimentary basins worldwide.
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