sedimentary
Fossiliferous Limestone
Fossiliferous Limestone
Hardness of 3 (Mohs scale), usually gray, tan, or off-white color, dull luster, composed mainly of calcium carbonate (calcite) and contains visible fossils
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Physical properties
Hardness of 3 (Mohs scale), usually gray, tan, or off-white color, dull luster, composed mainly of calcium carbonate (calcite) and contains visible fossils
Formation & geological history
Formed in shallow marine environments from the accumulation of shell, coral, algal, and fecal debris over millions of years
Uses & applications
Used in construction, aggregate, cement production, and as an ornamental stone
Geological facts
Limestone covers about 10% of the Earth's land surface and is a major carbon sink.
Field identification & locations
Identified by its reaction to dilute hydrochloric acid (effervescence) and the presence of visible fossils. Common in areas that were once shallow seas.
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