metamorphic

Marble

Metamorphic Rock (composed primarily of recrystallized calcite, CaCO3, or dolomite)

AI-generated identification · may be incorrect

Hardness of 3 on the Mohs scale, typically white to light gray with subtle veining or sparkling crystalline texture, vitreous to sugary luster, granular crystal structure, and reacts with acid (effervescence).

Identified August 2, 2026More metamorphic →

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Physical properties

Formation & geological history

Formed through the metamorphism of sedimentary carbonate rocks, most commonly limestone or dolostone, under intense heat and pressure deep within the Earth's crust.

Uses & applications

Widely used in sculpture, architecture, building facades, interior flooring, countertops, and decorative items.

Geological facts

Marble has been prized by sculptors and architects since antiquity due to its softness for carving and its translucent finish when polished. Famous historical works like Michelangelo's David are carved from Carrara marble.

Field identification & locations

Can be identified in the field by its interlocking crystalline texture, relative softness (can be scratched with a knife), and characteristic fizzing reaction when exposed to dilute hydrochloric acid.