mineral

Amethyst (Rose-tinted/Pale variety)

Silicon Dioxide (SiO2) with iron impurities

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

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

Identified February 14, 2026More mineral →

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Physical properties

Formation & geological history

Formed in hydrothermal veins and volcanic cavities (geodes). The color is produced by irradiation of trivalent iron (Fe3+) in the quartz structure. These minerals can be millions of years old, often dating to the Cretaceous period in South American deposits.

Uses & applications

Popular in jewelry as a semi-precious gemstone, ornamental decor, and highly collected by mineral enthusiasts for metaphysical purposes and aesthetic beauty.

Geological facts

Amethyst was considered one of the five cardinal gemstones until large deposits were found in Brazil. The name comes from the Ancient Greek 'amethystos', meaning 'not intoxicated', as it was believed to protect its owner from drunkenness.

Field identification & locations

Identify in the field by its distinct purple hue and ability to scratch glass but not topaz or corundum. Commonly found in Brazil, Uruguay, Zambia, and Ontario, Canada. Look for hexagonal crystal faces or conchoidal (shell-like) fractures on broken surfaces.

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