fossil

Tumbled amber

Amber (fossilized tree resin; commonly succinite, C10H16O)

AI-generated identification · may be incorrect

Warm brown to reddish-orange, translucent, resinous/vitreous luster, amorphous rather than crystalline, and very light (specific gravity about 1.05–1.10); Mohs hardness 2–2.5. The rounded, glossy surface indicates tumbling or polishing.

Identified August 17, 2026More fossil →

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Physical properties

Formation & geological history

Amber formed when ancient conifer or flowering-plant resin was buried, chemically altered, and hardened over millions of years; major deposits range from roughly 20–100 million years old. Common sources include the Baltic region, Dominican Republic, Myanmar, Mexico, and Indonesia.

Uses & applications

Used for beads, carvings, ornaments, and inexpensive jewelry; exceptionally clear pieces may contain insects or plant inclusions and command premiums.

Geological facts

Amber floats in concentrated salt water and becomes electrostatically charged when rubbed with wool; heating can produce a characteristic pine-like odor.

Field identification & locations

Identify by its low density, warm feel, conchoidal fracture, resinous appearance, and possible inclusions; a hot-needle test is damaging and should be avoided. The specimen appears common and inclusion-free: approximately $2–$20, or $20–$100+ if attractive, verified, and unusually clear.