organic gemstone

Polished amber

Fossilized tree resin; chiefly terpenoid polymers (succinite)

AI-generated identification · may be incorrect

Small, irregular brown-golden translucent piece with resinous luster and likely polished surfaces; Mohs hardness 2–2.5, amorphous/noncrystalline, specific gravity about 1.05–1.10, and no cleavage. The dark appearance may reflect natural oxidation, inclusions, or surface treatment.

Identified September 16, 2026More organic gemstone →

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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 roughly 20–100+ million years; Baltic amber is commonly Eocene in age (~44–34 Ma).

Uses & applications

Used for beads, cabochons, ornaments, carvings, and collector specimens; historically used in incense, varnish, and folk medicine.

Geological facts

Amber is organic rather than a mineral and may contain preserved insects, plant fragments, or gas bubbles. It can attract light debris when rubbed because of static electricity.

Field identification & locations

Identify by its very low density, warm feel, resinous luster, electrostatic charging, and ability to float in concentrated salt water; genuine amber softens or gives a pine-like odor when carefully heated, though destructive tests are discouraged. Common sources include the Baltic region, Dominican Republic, Mexico, Myanmar, and Indonesia.