sedimentary
Limestone
Calcium Carbonate (CaCO3)
AI-generated identification · may be incorrectHardness of 3 on Mohs scale, colors range from white to gray and yellowish-brown, vitreous to earthy luster, and exhibits effervescence when exposed to dilute hydrochloric acid.
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Physical properties
Hardness of 3 on Mohs scale, colors range from white to gray and yellowish-brown, vitreous to earthy luster, and exhibits effervescence when exposed to dilute hydrochloric acid.
Formation & geological history
Formed through the accumulation of organic remains like shells and coral or chemical precipitation in marine environments over millions of years.
Uses & applications
Widely used in construction as building material, crushed stone for road bases, and as a primary raw material for manufacturing cement and lime.
Geological facts
Limestone frequently contains well-preserved fossils of ancient marine organisms and forms spectacular cave systems through dissolution by acidic groundwater.
Field identification & locations
Identify in the field by its characteristic fizzing reaction with acid and relatively soft texture. Commonly found worldwide in sedimentary basins.
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