Rock Identifier
Raw amber (Fossilized tree resin; primarily polymerized terpenoid resin (succinite when Baltic-type)) — gemstone
gemstone

Raw amber

Fossilized tree resin; primarily polymerized terpenoid resin (succinite when Baltic-type)

AI-generated identification · may be incorrect

Typically Mohs hardness 2–2.5, low specific gravity about 1.05–1.10, translucent honey-orange to brown, resinous or greasy luster, amorphous rather than crystalline, with conchoidal fracture and no cleavage. The specimen appears translucent orange-brown and rough, consistent with amber.

Identified More gemstone
Explore Raw amber in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

Physical properties

Typically Mohs hardness 2–2.5, low specific gravity about 1.05–1.10, translucent honey-orange to brown, resinous or greasy luster, amorphous rather than crystalline, with conchoidal fracture and no cleavage. The specimen appears translucent orange-brown and rough, consistent with amber.

Formation & geological history

Amber forms when ancient tree resin is buried, chemically altered, and polymerized over tens of millions of years; major deposits are Eocene–Oligocene in age. Common sources include the Baltic region, Dominican Republic, Myanmar, Mexico, and Indonesia.

Uses & applications

Used for beads, carvings, cabochons, ornaments, and scientific inclusions; historically used as incense and decorative material. Clear pieces containing attractive insects can be valuable.

Geological facts

Amber can float in saturated salt water and becomes electrostatically charged when rubbed. Heating often produces a pine-like odor, distinguishing it from many plastics, though testing can damage the specimen.

Field identification & locations

Identify by very low density, warm feel, softness, electrostatic attraction, and natural flow lines or bubbles; inspect for organic inclusions. The image alone cannot confirm amber over copal or resinous plastic.