Amber and Citrine Quartz

Physical Properties

Amber: Hardness 2.0-2.5, Resinous luster, Amorphous structure, Gold/Brown color. Citrine: Hardness 7.0, Vitreous luster, Trigonal crystal system, Yellow/Pale gold color.

Formation & Geological History

Amber is fossilized tree resin from ancient coniferous forests (40-60 million years old). Citrine occurs in igneous and metamorphic rocks, though most commercial citrine is heat-treated amethyst.

Uses & Applications

Primarily used in jewelry, lapidary arts, and as collector specimens. Historically used in folk medicine and spiritual practices.

Geological Facts

Amber is organic rather than a mineral; it is often called an 'organic gemstone.' It can sometimes contain inclusions of well-preserved prehistoric insects or plant matter.

Field Identification & Locations

Identify amber via the 'saltwater test' (it floats in salt water) or its warmth to the touch. Citrine is identified by its hardness and absence of cleavage. Found commonly in the Baltic region (Amber) and Brazil (Citrine).

Identified on: 4/21/2026

Mode: Standard