gemstone

Amber cabochon pendant

Amber (fossilized plant resin), chiefly polymerized diterpenoid resin

AI-generated identification · may be incorrect

Honey-brown, translucent resin with rounded bubbles and glitter-like inclusions; resinous luster, amorphous/noncrystalline structure, Mohs hardness about 2–2.5, specific gravity 1.05–1.10, and no cleavage. The metal setting and chain are human-made, but the inset material is a geological/fossil resin specimen.

Identified August 29, 2026More gemstone →

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Physical properties

Formation & geological history

Amber formed when ancient conifer or flowering-plant resin was buried, polymerized, and preserved in sediment over millions of years, commonly from the Cretaceous to Paleogene. The exact locality and age cannot be determined visually.

Uses & applications

Used mainly in jewelry and ornamental carvings; historically used for incense, decorative objects, and small scientific inclusions. It is lightweight and warm to the touch compared with glass or stone.

Geological facts

Rounded gas bubbles, flow lines, and plant or insect inclusions support amber identification; copal is a younger, softer resin often mistaken for amber.

Field identification & locations

Common sources include the Baltic region, Dominican Republic, Mexico, Myanmar, and Indonesia. Test cautiously: amber floats in concentrated salt water and produces a pine-like odor when gently warmed; avoid destructive tests on jewelry.