metamorphic
White Marble
Metamorphic carbonate rock (primarily CaCO3)
Hardness of 3 on the Mohs scale, predominantly white or off-white with grey or colored veining (due to impurities), subvitreous to pearly luster, non-foliated massive crystal structure, specific gravity around 2.7.
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Physical properties
Hardness of 3 on the Mohs scale, predominantly white or off-white with grey or colored veining (due to impurities), subvitreous to pearly luster, non-foliated massive crystal structure, specific gravity around 2.7.
Formation & geological history
Formed through the metamorphism of sedimentary carbonate rocks, most commonly limestone or dolomite rock, subjected to high heat and pressure over millions of years.
Uses & applications
Extensively used in architecture for building facades, interior flooring, wall tiles, columns, and sculpturing due to its aesthetic appeal and workability.
Geological facts
Marble has been used since antiquity for monumental buildings and statues, most notably by ancient Greek and Roman sculptors such as Michelangelo for his famous David.
Field identification & locations
Identified by its softness (easily scratched by a knife), reactivity with acid (fizzing when in contact with dilute hydrochloric acid), and characteristic crystalline sparkle.
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