Rock Identifier
Amber (Fossilized tree resin) — gemstone
gemstone

Amber

Fossilized tree resin

Hardness: 2-3 Mohs, Color: Golden yellow to orange-brown, Luster: Resinous, Crystal structure: Amorphous, Specific gravity: 1.05-1.10

Luster
Resinous, Crystal structure: Amorphous, Specific gravity: 1
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Physical properties

Hardness: 2-3 Mohs, Color: Golden yellow to orange-brown, Luster: Resinous, Crystal structure: Amorphous, Specific gravity: 1.05-1.10

Formation & geological history

Formed from polymerized tree sap millions of years ago, often from coniferous trees, preserved under high pressure and temperature in sedimentary environments. Common ages range from 30 to 90 million years.

Uses & applications

Primarily used in jewelry and decorative objects. Also valued by scientists and collectors for preserving ancient insects and plant matter.

Geological facts

Amber is famous for sometimes containing perfectly preserved prehistoric flora and fauna. Historically, it was believed to have healing properties.

Field identification & locations

Can be identified by its warm feel, light weight, and the fact that it floats in saltwater. Easily scratched compared to mineral gemstones. Common locations include the Baltic region, Dominican Republic, and Myanmar.