gemstone

Tumbled amber-like chalcedony or resinous fossil material

Likely chalcedony (microcrystalline SiO₂), though the appearance could also indicate copal/amber

AI-generated identification · may be incorrect

Translucent honey-brown, smooth tumbled surface, vitreous-to-waxy luster, and no visible crystal faces; chalcedony has Mohs hardness 6.5–7, while amber/copal is much softer (about 2–3).

Identified August 11, 2026More gemstone →

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At a glance

Common name: Tumbled amber-like chalcedony or resinous fossil material
Scientific name: Likely chalcedony (microcrystalline SiO₂), though the appearance could also indicate copal/amber
Category: gemstone
Identified: August 11, 2026
Method: Standard

AI Estimated Value

About $5–$25 as a common tumbled chalcedony piece; genuine inclusion-rich amber could range from $10–$100+, depending on size and authenticity.

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

Translucent honey-brown, smooth tumbled surface, vitreous-to-waxy luster, and no visible crystal faces; chalcedony has Mohs hardness 6.5–7, while amber/copal is much softer (about 2–3).

Formation & geological history

If chalcedony, it formed when silica-rich groundwater filled cavities or fractures and solidified over geological time; if amber, it is fossilized tree resin, commonly tens of millions of years old.

Uses & applications

Used as a lapidary and ornamental stone, in beads and carvings; amber is also used in jewelry and collectibles. The specimen is too small and visually uncertain for construction use.

Geological facts

The green flecks may be inclusions such as chlorite, plant matter, or mineral staining. A hot-needle test can damage amber and should be avoided; chalcedony commonly scratches glass, whereas amber does not.

Field identification & locations

Common chalcedony sources include Brazil, Uruguay, India, Madagascar, and the western United States; amber is notable from the Baltic region and Dominican Republic. Exact identification requires hardness, density, UV, and magnification tests.