fossil

Tumbled amber

Amber (fossilized plant resin; commonly succinite, C₁₀H₁₆O)

AI-generated identification · may be incorrect

Mohs hardness 2–2.5; translucent honey-yellow to orange with resinous luster, low density, and amorphous (noncrystalline) structure. The rounded, polished form and warm golden color are consistent with amber, though visual identification alone is not definitive.

Identified August 23, 2026More fossil →

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Physical properties

Formation & geological history

Amber forms when ancient tree resin is buried, polymerized, and chemically altered over millions of years; Baltic amber is commonly Eocene–Oligocene, about 56–23 million years old. It occurs in lignite-bearing sediments and coastal placer deposits.

Uses & applications

Used for beads, cabochons, carvings, ornaments, and scientific specimens; inclusions can increase jewelry and collector value.

Geological facts

Amber may contain fossil insects, plant fragments, or gas bubbles. It can become electrostatically charged when rubbed and commonly floats in saturated salt water.

Field identification & locations

Common sources include the Baltic region, Dominican Republic, Myanmar, Mexico, and Indonesia. Check for a lightweight feel, resinous smell when gently warmed, static attraction, and warm coloration; copal or plastic imitations are common.