fossil

Tumbled amber

Fossilized tree resin; commonly succinite (organic resin, not a mineral)

AI-generated identification · may be incorrect

Honey-brown, translucent, resinous luster with internal flow lines or inclusions; Mohs hardness 2–2.5, very low specific gravity (~1.05–1.10), amorphous structure, and no cleavage. The rounded shape indicates tumbling or natural abrasion.

Identified August 11, 2026More fossil →

Explore Tumbled amber in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Formation & geological history

Amber formed when ancient conifer or flowering-plant resin was buried, polymerized, and chemically altered over millions of years, commonly during the Cretaceous–Neogene. Major deposits occur around the Baltic Sea, the Dominican Republic, Myanmar, Mexico, and Indonesia.

Uses & applications

Used for beads, carvings, jewelry, ornaments, and scientific inclusions; historically used as incense and folk medicine. Small ordinary pieces have modest value.

Geological facts

Amber often preserves insects, pollen, and plant fragments; static electricity when rubbed and a pine-like odor when gently warmed are characteristic, though destructive tests should be avoided.

Field identification & locations

Identify by its exceptionally light weight, warm feel, translucency, and ability to float in concentrated salt water; copal and plastic imitations are common. Typical value is $2–$20 for a small clear tumbled piece, or $50–$500+ if it contains a genuine well-preserved inclusion.