metamorphic
Marble
Metamorphic carbonate rock (primarily CaCO3)
Hardness of 3 on the Mohs scale, colors range from white to gray, pink, or brownish due to impurities, sub-vitreous to pearly luster, massive or granular crystal structure with no cleavage, specific gravity around 2.7.
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Physical properties
Hardness of 3 on the Mohs scale, colors range from white to gray, pink, or brownish due to impurities, sub-vitreous to pearly luster, massive or granular crystal structure with no cleavage, specific gravity around 2.7.
Formation & geological history
Formed through the metamorphism of sedimentary carbonate rocks, most commonly limestone or dolostone, under high heat and pressure, typically during tectonic plate convergence over millions of years.
Uses & applications
Widely used in sculpture, architecture, interior decoration, countertops, flooring, and monumental construction due to its aesthetic appeal and workability.
Geological facts
Marble has been prized by sculptors and architects since ancient times, famously used by Michelangelo for his statue of David and the Parthenon in Athens.
Field identification & locations
Identified by its crystalline texture, softness (easily scratched by a knife), and characteristic effervescence when exposed to dilute hydrochloric acid. Found globally in regions with extensive ancient mountain-building events.
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