gemstone

Tumbled amber-like material

Amber (fossilized tree resin; chiefly polymerized diterpenoid resin)

AI-generated identification · may be incorrect

Honey-brown, translucent, resinous luster with irregular flow-like internal texture; Mohs hardness about 2–2.5, very low density (~1.05–1.10), and no cleavage or crystal structure. The image alone cannot distinguish natural amber from copal or imitation resin.

Identified August 26, 2026More gemstone →

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Physical properties

Formation & geological history

Amber formed when ancient tree resin was buried, chemically altered, and hardened over millions of years; major deposits include Baltic-region Paleogene amber (~34–56 million years old) and Dominican Miocene amber (~15–20 million years old).

Uses & applications

Cut and polished for jewelry, ornaments, beads, and specimens; historically used for incense and decorative objects.

Geological facts

Natural amber often floats in concentrated salt water, warms quickly in the hand, and may produce a pine-like odor when gently warmed. Copal is younger and softer; plastic imitations may show bubbles or uniform color.

Field identification & locations

Common localities include the Baltic coast, Dominican Republic, Myanmar, Mexico, and Indonesia. Confirm with density, UV fluorescence, magnification, and professional testing; avoid destructive hot-needle tests.