Rock Identifier
Amber (Fossilized plant resin; chiefly an organic polymer (succinite), not a crystalline mineral) — gemstone
gemstone

Amber

Fossilized plant resin; chiefly an organic polymer (succinite), not a crystalline mineral

AI-generated identification · may be incorrect

Translucent honey-brown to orange, resinous luster, conchoidal fracture, no cleavage, Mohs hardness about 2–2.5, specific gravity about 1.05–1.10; the glossy surface suggests polishing or natural wear. The apparent dark inclusions may be plant debris or weathering.

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Physical properties

Translucent honey-brown to orange, resinous luster, conchoidal fracture, no cleavage, Mohs hardness about 2–2.5, specific gravity about 1.05–1.10; the glossy surface suggests polishing or natural wear. The apparent dark inclusions may be plant debris or weathering.

Formation & geological history

Formed when ancient tree resin was buried and chemically matured over millions of years, commonly during the Cretaceous to Paleogene (about 145–23 million years ago). Major deposits occur in Baltic-region sediments, the Dominican Republic, Mexico, Myanmar, and elsewhere.

Uses & applications

Used for beads, cabochons, carvings, ornaments, and traditional medicines; industrial uses are limited. Pieces with clear insect or plant inclusions can be highly collectible.

Geological facts

Amber is warm to the touch, floats in concentrated salt water, and can produce a pine-like odor and static charge when gently heated or rubbed. This specimen cannot be confirmed as amber from the image alone; some yellow-brown plastics, copal, or glass can look similar.

Field identification & locations

Identify by very low density, softness, resinous appearance, and warm smoke-like scent when carefully tested; avoid destructive heat tests on valuable pieces. Common sources include Baltic beaches and Dominican mines.