metamorphic

White marble (likely calcite marble)

Calcite-rich marble, chiefly CaCO₃

AI-generated identification · may be incorrect

Coarse, massive white-to-cream rock with tan weathering stains and a sugary crystalline texture. Calcite is Mohs 3, vitreous to pearly, with rhombohedral cleavage; the image does not establish exact composition or grade.

Identified September 29, 2026More metamorphic →

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Physical properties

Formation & geological history

Forms when limestone or dolostone recrystallizes during metamorphism; the specimen’s age and specific setting cannot be determined from the image.

Uses & applications

Marble is used for building stone, sculpture, tiles, and decorative surfaces; this broken, weathered material appears more suitable for local stone or aggregate than fine carving.

Geological facts

Calcite marble fizzes with dilute hydrochloric acid, unlike most quartz-rich rocks; dolomitic marble may react weakly unless powdered.

Field identification & locations

The large pale, crystalline blocks among smaller debris are consistent with marble, but calcite-rich limestone is a possible lookalike. Marble occurs in metamorphic belts worldwide, including Italy, Greece, Vermont, and Colorado.