metamorphic
Marble
Metamorphic carbonate rock (Calcite/Dolomite)
Hardness: 3 on the Mohs scale. Color: Predominantly white, but can feature gray, pink, green, or black veins (due to impurities). Luster: Subvitreous to greasy. Crystal structure: Granular, interlocking mosaic of calcite or dolomite crystals. Cleavage: Distinct rhombohedral cleavage in individual crystals.…
- Hardness
- 3 on the Mohs scale
- Luster
- Subvitreous to greasy
Identified More metamorphic →
Explore Marble in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 3 on the Mohs scale. Color: Predominantly white, but can feature gray, pink, green, or black veins (due to impurities). Luster: Subvitreous to greasy. Crystal structure: Granular, interlocking mosaic of calcite or dolomite crystals. Cleavage: Distinct rhombohedral cleavage in individual crystals. Specific gravity: 2.55 - 2.70 g/cm³.
Formation & geological history
Formed through the metamorphism of sedimentary carbonate rocks, most commonly limestone or dolostone, under intense heat and pressure over millions of years. This process causes the original fossils and textures to recrystallize into a dense, interlocking network of carbonate crystals.
Uses & applications
Widely used in sculpture, interior and exterior architecture (flooring, wall panels, columns), monuments, and countertops due to its aesthetic appeal and workability.
Geological facts
Marble has been prized as a building and sculpting material since classical antiquity, used by ancient Greek and Roman civilizations to create timeless statues and monumental architecture such as the Parthenon and the Taj Mahal.
Field identification & locations
Identified easily in the field by its soft nature (can be scratched with a knife), crystalline sugary texture, and vigorous effervescence (fizzing) when dilute hydrochloric acid is applied due to its calcium carbonate content. Found globally in regions with ancient tectonic activity.
More like this
