Amethyst Quartz

Physical Properties

Hardness: 7 on Mohs scale. Color: Pale to deep purple, often with white or orange iron-stained zones. Luster: Vitreous (glassy). Crystal Structure: Hexagonal (trigonal). Cleavage: None (conchoidal fracture).

Formation & Geological History

Amethyst forms in hydrothermal veins or as linings in geodes. The purple color is caused by trace amounts of iron being irradiated by natural gamma rays within the surrounding rock over millions of years.

Uses & Applications

Extensively used in jewelry (faceting, beads, or cabochons), as decorative display specimens, and in metaphysical practices.

Geological Facts

The name 'Amethyst' comes from the Ancient Greek word 'amethystos', which means 'not intoxicated,' as it was believed to protect the owner from drunkenness. It is the birthstone for February.

Field Identification & Locations

Identified by its hexagonal crystal shape (terminating in a point) and characteristic purple hue. Often found in Brazil, Uruguay, and parts of Canada and the US. This specific specimen shows iron staining and a rough base.

Identified on: 5/3/2026

Mode: Standard