gemstone

Polished amber cabochon pendant

Amber (fossilized plant resin), chiefly polymerized succinite; approximate formula C10H16O

AI-generated identification · may be incorrect

Translucent honey-brown to yellow material with resinous luster, smooth polished surface, and no visible crystal structure; Mohs hardness about 2–2.5, specific gravity 1.05–1.10. The dark inclusions may be organic debris or natural internal flow features.

Identified August 28, 2026More gemstone →

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Physical properties

Formation & geological history

Amber formed from ancient tree resin that polymerized and fossilized in sediment over tens of millions of years, commonly from the Eocene–Oligocene Baltic region (about 56–23 million years ago). The specimen is cut, polished, and drilled or mounted as jewelry.

Uses & applications

Used for pendants, beads, carvings, ornaments, and collector specimens; it is generally too soft for industrial construction use. Clear pieces with attractive inclusions have greater jewelry value.

Geological facts

Amber often floats in concentrated salt water and becomes electrostatically charged when rubbed. Genuine amber may show flow lines, warm tactile feel, and occasional fossil inclusions; similar plastic or copal can imitate it.

Field identification & locations

Common sources include the Baltic region, Dominican Republic, Mexico, Myanmar, and Indonesia. Check with magnification, UV fluorescence, density, and professional testing; visual identification alone is uncertain.