mineral

Blue glassy mineral fragment, possibly sodalite or dyed/cobalt glass

Uncertain; likely sodalite (Na₈Al₆Si₆O₂₄Cl₂) if natural, but vivid blue color may indicate cobalt-colored glass

AI-generated identification · may be incorrect

Small angular blue fragment with vitreous luster and irregular fracture; apparent hardness is roughly 5–7 if mineral, but cannot be measured visually. No clear crystal faces or cleavage are visible; pale areas may be inclusions, abrasion, or coating.

Identified August 19, 2026More mineral →

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At a glance

Common name: Blue glassy mineral fragment, possibly sodalite or dyed/cobalt glass
Scientific name: Uncertain; likely sodalite (Na₈Al₆Si₆O₂₄Cl₂) if natural, but vivid blue color may indicate cobalt-colored glass
Category: mineral
Identified: August 19, 2026
Method: Standard

AI Estimated Value

About $1–$15 for a small sodalite fragment; under $1–$5 if ordinary blue glass. A definitive identification requires testing.

Not an official valuation

AI estimate for general interest only — not an appraisal. Actual value depends on condition, provenance, and market demand. Verify with a professional before buying, selling, or insuring.

This identification was generated by AI and may contain errors. Verify important details before relying on them — and never use an AI result to judge whether a specimen is safe to handle. Read the full disclaimer

Physical properties

Formation & geological history

Sodalite forms in silica-poor alkaline igneous rocks, commonly in nepheline syenite, during Precambrian to younger geological events. If glass, it is human-made and not geological, though the photographed piece cannot be distinguished confidently without testing.

Uses & applications

Sodalite is used as an ornamental stone, beads, carvings, and inexpensive jewelry. Blue glass is decorative but generally has little collector value.

Geological facts

Natural sodalite is usually opaque royal blue with white calcite veining, whereas intensely transparent cobalt-blue fragments commonly represent glass or synthetic material.

Field identification & locations

Check for white calcite veining, granular texture, and a refractive mineral surface; a loupe, hardness test, and specific gravity test are useful. A conchoidal fracture, bubbles, or perfectly glassy appearance strongly suggest glass.