mineral

Polished blue stone, possibly sodalite

Uncertain from the image; blue sodalite (Na₈(Al₆Si₆O₂₄)Cl₂) is one possibility

AI-generated identification · may be incorrect

Smooth, rounded, opaque blue surface with a slight sheen. Hardness and crystal structure cannot be determined from the image; sodalite has Mohs hardness 5.5–6 and a cubic structure.

Identified September 25, 2026More mineral →

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Physical properties

Smooth, rounded, opaque blue surface with a slight sheen. Hardness and crystal structure cannot be determined from the image; sodalite has Mohs hardness 5.5–6 and a cubic structure.

Formation & geological history

If sodalite, it formed in silica-poor igneous rocks such as nepheline syenite. The specimen’s age and geological origin cannot be established visually.

Uses & applications

Polished blue stones are used in jewelry, carvings, and decorative collections; sodalite is also a popular ornamental material.

Geological facts

The uniform blue color and polished finish are not diagnostic; lapis lazuli, dyed agate, and other materials can look similar.

Field identification & locations

Identification would require examining features such as streak, hardness, translucency, and mineral inclusions. The image does not show enough detail to confirm a locality or species.