Amber

Physical Properties

Hardness: 2.0-2.5 (Mohs scale); Color: Yellow to brownish-orange; Luster: Resinous; Crystal structure: Amorphous; Specific gravity: 1.05-1.09

Formation & Geological History

Formed from the fossilization of tree resin over millions of years, typically dating back to the Cretaceous or Tertiary periods (approx. 30-90 million years old).

Uses & Applications

Used primarily in jewelry, decorative arts, and as a source for studying prehistoric life through preserved inclusions.

Geological Facts

Amber is one of the few organic 'gems'. It can float in saltwater and is famous for trapping ancient insects, plants, and even lizards in perfectly preserved detail.

Field Identification & Locations

Identify by its warmth to the touch (unlike glass/stone) and its ability to develop a static charge when rubbed. Found in coastal regions, particularly the Baltic Sea and Dominican Republic.

Identified on: 4/15/2026

Mode: Standard