Rock Identifier
White marble (likely calcite marble) (Calcite marble; predominantly calcite (CaCO₃)) — metamorphic
metamorphic

White marble (likely calcite marble)

Calcite marble; predominantly calcite (CaCO₃)

AI-generated identification · may be incorrect

White to cream, massive and visibly crystalline with a sugary texture; calcite has Mohs hardness 3, vitreous-to-dull luster, and rhombohedral cleavage. The specimen’s rough surface makes precise identification uncertain from the image alone.

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Physical properties

White to cream, massive and visibly crystalline with a sugary texture; calcite has Mohs hardness 3, vitreous-to-dull luster, and rhombohedral cleavage. The specimen’s rough surface makes precise identification uncertain from the image alone.

Formation & geological history

Forms when limestone or dolostone recrystallizes during metamorphism; marble ranges from ancient to geologically recent and occurs in metamorphic belts near mountain-building zones or intrusions.

Uses & applications

Used for sculpture, decorative stone, tiles, and aggregate; this rough, modest specimen is mainly suitable for collecting or a small craft project.

Geological facts

Calcite marble fizzes when a drop of dilute acid is applied; dolomitic marble may react weakly unless powdered.

Field identification & locations

Look for interlocking, sugary calcite crystals and test a hidden spot with dilute acid; common sources include Italy, Greece, India, and Vermont. A photo cannot confirm marble versus another pale calcite-rich rock.