mineral

Likely rough emerald-bearing rock

Emerald (green beryl, Be₃Al₂Si₆O₁₈) in a mineral matrix; exact identification is uncertain from the image

AI-generated identification · may be incorrect

Opaque to translucent green areas with a vitreous luster and irregular fracture; emerald has Mohs hardness 7.5–8, hexagonal crystal structure, and specific gravity about 2.7–2.8. The specimen appears mixed with pale and dark matrix minerals, so its green material cannot be confirmed visually as emerald.

Identified October 10, 2026More mineral →

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At a glance

Common name: Likely rough emerald-bearing rock
Scientific name: Emerald (green beryl, Be₃Al₂Si₆O₁₈) in a mineral matrix; exact identification is uncertain from the image
Category: mineral
Identified: October 10, 2026
Method: Standard

AI Estimated Value

Approximately $1–$30 as an unverified rough specimen; confirmed gem-quality material may be worth substantially more.

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

Emerald forms when beryllium-bearing fluids react with chromium- or vanadium-bearing rocks, commonly in hydrothermal veins or metamorphic settings; deposits range from Precambrian to much younger ages.

Uses & applications

Gem-quality emerald is cut for jewelry; lower-grade emerald-bearing rock is mainly collected as a mineral specimen.

Geological facts

Emerald is the green variety of beryl, with its color typically caused by chromium, vanadium, or both.

Field identification & locations

Look for distinct green beryl crystals and test hardness or obtain gemological analysis; common sources include Colombia, Zambia, Brazil, and Afghanistan. A photo alone cannot reliably distinguish emerald from other green minerals or stained matrix.