Amber

Physical Properties

Hardness: 2.0-2.5 Mohs, Color: Golden yellow to brown, Luster: Resinous, Crystal Structure: Amorphous (non-crystalline), Cleavage: None, Specific Gravity: 1.05-1.10. It is often warm to the touch and can float in saltwater.

Formation & Geological History

Formed from the fossilization of botanical resins from extinct coniferous or deciduous trees, specifically dating back millions of years (commonly 30-90 million years ago). Heat and pressure over geological time polymerize the resin into a semi-fossilized state known as copal, then into true amber.

Uses & Applications

Extensively used in jewelry (beads, pendants), as a component in perfumes/incense, and in paleontological research for preserved inclusions (insects, flora). Historically used in traditional medicine and high-end varnishes.

Geological Facts

Amber is often found with prehistoric 'inclusions' like insects or plant matter trapped inside. One of the most famous historical uses was the 'Amber Room' in Russia, often described as the eighth wonder of the world.

Field Identification & Locations

Identified in the field by its low density, resinous feel, and static electricity properties (becomes charged when rubbed). Common locations include the Baltic region, Dominican Republic, and Myanmar. Authentic amber will float in a solution of salt and water where many plastic imitations will sink.

Identified on: 4/29/2026

Mode: Standard