Amber

Physical Properties

Hardness: 2.0-2.5 on Mohs scale; Color: Yellow-orange to brownish-red; Luster: Resinous; Crystal structure: Amorphous; Cleavage: None; Specific Gravity: 1.05-1.09 (v light, floats in salt water).

Formation & Geological History

Formed through the polymerization and fossilization of tree resin over millions of years, typically from the Tertiary period (roughly 30-90 million years ago).

Uses & Applications

Primarily used in jewelry, decorative arts, and for scientific study in paleontology (when inclusions are present).

Geological Facts

Amber is not technically a mineral because it is organic (not inorganic). Sometimes it contains preserved organic material like insects, moss, or flowers which are very valuable to scientists.

Field Identification & Locations

Identify in the field by its light weight and warmth to the touch; it will generate static electricity when rubbed with a wool cloth and emits a pine-like smell when touched with a hot needle.

Identified on: 4/21/2026

Mode: Standard