gemstone

Polished amber-like agate or jasper carving

Likely chalcedony (microcrystalline SiO₂), possibly iron-stained carnelian/jasper; exact identification requires testing

AI-generated identification · may be incorrect

Translucent orange-brown material with glossy polish and dark dendritic or fracture-like inclusions; Mohs hardness about 6.5–7, vitreous/waxy luster, cryptocrystalline structure, no obvious cleavage. The carved shape and surface reflections indicate a processed geological specimen.

Identified August 28, 2026More gemstone →

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At a glance

Common name: Polished amber-like agate or jasper carving
Scientific name: Likely chalcedony (microcrystalline SiO₂), possibly iron-stained carnelian/jasper; exact identification requires testing
Category: gemstone
Identified: August 28, 2026
Method: Standard

AI Estimated Value

Approximately $10–$60 for a typical small carving; $75–$200+ if unusually attractive, well-carved, or confirmed as high-quality agate.

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

Chalcedony forms when silica-rich groundwater fills cavities and fractures in volcanic rocks, commonly during the Cenozoic or older geologic periods; iron produces orange-brown coloration. If true amber, it would instead be fossilized resin, but the appearance more strongly suggests chalcedony or jasper.

Uses & applications

Used for carvings, cabochons, beads, ornamental objects, and inexpensive jewelry; valued mainly for color, translucency, pattern, craftsmanship, and size.

Geological facts

Dendritic markings may be manganese- or iron-oxide inclusions rather than organic material. A hardness or refractive-index test can distinguish it from amber, plastic, and glass.

Field identification & locations

Common sources include Brazil, Uruguay, India, Madagascar, Mexico, and the United States. Field clues include coolness to touch, substantial weight, glassy fracture, and resistance to scratching by steel; definitive identification requires gemological testing.