mineral

Tumbled blue-green stone, possibly chrysocolla or serpentine

Indeterminate from photograph; likely chrysocolla (hydrated copper silicate) or green serpentine (serpentine-group minerals)

AI-generated identification · may be incorrect

Smooth, polished, blue-green, opaque, with dark linear veining and a dull to waxy luster. Chrysocolla has Mohs hardness 2–4; serpentine is typically 2.5–4. Specific gravity is approximately 2.0–2.6. No crystal faces are visible.

Identified September 4, 2026More mineral →

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At a glance

Common name: Tumbled blue-green stone, possibly chrysocolla or serpentine
Scientific name: Indeterminate from photograph; likely chrysocolla (hydrated copper silicate) or green serpentine (serpentine-group minerals)
Category: mineral
Identified: September 4, 2026
Method: Standard

AI Estimated Value

$1–$10 for a common tumbled specimen; $10–$40 if it proves to be attractive natural chrysocolla or turquoise.

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

Chrysocolla forms in oxidized zones of copper deposits; serpentine forms when ultramafic rocks are hydrothermally altered. The specimen is likely tumbled or naturally water-worn, so its geological age cannot be determined visually.

Uses & applications

Used as a lapidary stone, cabochon, bead, or decorative specimen. Chrysocolla is generally too soft for everyday rings; serpentine is used ornamentally and sometimes carved.

Geological facts

The color may also indicate dyed howlite, turquoise, or a mixture such as chrysocolla-bearing quartz. A hardness test and copper-related color zoning would help distinguish possibilities.

Field identification & locations

The Veracruz region near 18.8°N, 95.8°W contains volcanic and hydrothermal rocks, making copper minerals plausible, though this small polished stone cannot be confidently localized. Avoid scratching glass unless testing: chrysocolla and serpentine usually scratch with a steel blade, while turquoise generally does not.