Marble (Carrara Marble style)

Physical Properties

Hardness: 3 on Mohs scale; Color: White with grey veining; Luster: Vitreous to pearly; Crystal structure: Trigonal/Hexagonal (granular); Cleavage: Perfect rhombohedral in calcite crystals; Specific gravity: 2.7

Formation & Geological History

Formed through the regional metamorphism of limestone or dolostone under intense heat and pressure, causing recrystallization of carbonate minerals. Common in Phanerozoic orogenic belts.

Uses & Applications

High-end construction (countertops, flooring), sculpture, architectural monuments, and crushed stone for industrial uses.

Geological Facts

Michelangelo’s David was carved from a single block of Carrara marble. It is also used in pharmaceuticals as a calcium supplement or antacid once ground down.

Field Identification & Locations

Identify by its softness (can be scratched by a steel blade) and its vigorous effervescence when exposed to cold dilute hydrochloric acid. Look for sugary texture on fresh surfaces.

Identified on: 4/17/2026

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