gemstone

Amber (likely opaque/burnished amber)

Fossilized plant resin; primarily polymerized terpenoid resin (succinite-type amber)

AI-generated identification · may be incorrect

Translucent honey-brown to reddish-brown, resinous/waxy luster, conchoidal fracture, no cleavage, Mohs hardness about 2–2.5, specific gravity about 1.05–1.10; commonly floats in concentrated salt water. The irregular piece appears naturally rough or lightly polished, with flow-like internal patterns.

Identified August 17, 2026More gemstone →

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At a glance

Common name: Amber (likely opaque/burnished amber)
Scientific name: Fossilized plant resin; primarily polymerized terpenoid resin (succinite-type amber)
Category: gemstone
Identified: August 17, 2026
Method: Standard

AI Estimated Value

About $5–$30 for a common rough piece; $30–$150+ if unusually clear, large, or containing a verified inclusion. If it is copal or synthetic resin, value is usually under $10.

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

Amber formed from ancient tree resin that was buried, chemically altered, and polymerized over millions of years; Baltic amber is mainly Eocene, roughly 34–56 million years old. The reported Croatian-region location makes amber possible as transported sediment, though the specimen could also be modern resin or copal without testing.

Uses & applications

Used for beads, carvings, ornaments, jewelry, and collector specimens; historically used as incense and in folk medicine. Common pieces have modest value.

Geological facts

Amber often contains plant fragments, bubbles, or insects. It softens with heat and produces a pine-like odor when gently warmed; copal is younger and usually softer and more soluble.

Field identification & locations

Identify by its very low density, warm feel, static attraction after rubbing, conchoidal fracture, and reaction to UV (often blue-white fluorescence). Confirm with hardness, salt-water float, and FTIR testing; avoid destructive heat tests.