gemstone

Polished amber

Amber (fossilized plant resin; chiefly polymerized diterpenoid resin)

AI-generated identification · may be incorrect

Typically Mohs hardness 2–2.5, very low specific gravity (about 1.05–1.10), resinous luster, translucent orange-brown to reddish-brown color, and amorphous—not crystalline—structure. It is warm to the touch, lightweight, and may show flow lines or inclusions.

Identified August 10, 2026More gemstone →

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Physical properties

Formation & geological history

Formed when ancient tree resin was buried, chemically altered, and polymerized over millions of years, commonly during the Cretaceous to Neogene. This specimen appears naturally weathered and polished, possibly Baltic or another sedimentary-basin amber.

Uses & applications

Used for beads, cabochons, carvings, ornaments, and scientific inclusions; fine insect-bearing material is collectible. Common polished pieces generally sell for about $5–$50, while exceptional clarity, size, or inclusions can reach hundreds or more.

Geological facts

Amber can float in saltwater and becomes electrostatically charged when rubbed with wool. Heated amber produces a pine-like odor; copal, a younger resin, is softer and less geologically mature.

Field identification & locations

Identify it by its low density, warm feel, resinous appearance, static charge, and scratchability with a steel point or fingernail. Major sources include the Baltic region, Dominican Republic, Mexico, Myanmar, and Indonesia.