mineral

Amethyst (Pale/Lavender variety)

Silicon Dioxide (SiO2)

Hardness: 7 on Mohs scale; Color: Pale lavender to light purple; Luster: Vitreous (glassy); Crystal Structure: Hexagonal/Trigonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65.

Hardness: 7 on Mohs scale
Color: Pale lavender to light purple
Luster: Vitreous (glassy)

Identified March 10, 2026More mineral →

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Physical properties

Hardness: 7 on Mohs scale; Color: Pale lavender to light purple; Luster: Vitreous (glassy); Crystal Structure: Hexagonal/Trigonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65.

Formation & geological history

Formed in hydrothermal veins or volcanic geodes when silica-rich fluids permeate rock cavities. The purple color is caused by irradiation of iron impurities within the quartz lattice. Found in deposits ranging from Precambrian to Cenozoic ages.

Uses & applications

Primarily used in jewelry (rings, pendants), as decorative collectibles, and in metaphysical practices. In industry, quartz is used in glassmaking and electronics, though colored amethyst is usually reserved for aesthetic purposes.

Geological facts

The name comes from the Ancient Greek 'amethystos', meaning 'not intoxicated', due to a belief that the stone protected its owner from drunkenness. It was once considered one of the five cardinal gemstones alongside diamonds and rubies until large deposits were found in Brazil.

Field identification & locations

Identify in the field by its distinct purple hue, six-sided crystal terminations (if present), and inability to be scratched by a steel knife. Common locations include Brazil, Uruguay, Madagascar, and the United States (Arizona/North Carolina).

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