gemstone

Amber

Fossilized plant resin; chiefly polymerized terpenoid hydrocarbons (succinite when Baltic-type)

AI-generated identification · may be incorrect

Mohs hardness 2–2.5; transparent to translucent honey-yellow/orange, resinous luster, amorphous and noncrystalline, with conchoidal fracture and very low density (~1.05–1.10). The specimen appears rough and naturally fractured, possibly containing internal flow textures.

Identified September 16, 2026More gemstone →

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Physical properties

Formation & geological history

Amber forms when ancient tree resin is buried, chemically altered, and polymerized over millions of years, commonly during the Cretaceous–Neogene. Major deposits include Baltic-region Eocene amber, Dominican Miocene amber, and Burmese Cretaceous amber.

Uses & applications

Used for beads, cabochons, carvings, ornaments, and scientific inclusions; historically used as incense and folk medicine. It is too soft for most industrial applications.

Geological facts

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

Field identification & locations

Identify by its very light weight, warm resinous appearance, conchoidal fracture, static charge, and ability to soften or emit a pine-like odor when gently warmed; beware plastic imitations. Common locations include the Baltic coast, Dominican Republic, Myanmar, Mexico, and Indonesia.