mineral

Chevron Amethyst (Banded Amethyst)

Quartz var. Amethyst (SiO2 with iron impurities)

AI-generated identification · may be incorrect

Hardness of 7 on the Mohs scale, vitreous luster, trigonal crystal system, white to purple angular banding (chevron pattern), no cleavage, specific gravity 2.65.

Identified October 3, 2026More mineral →

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Physical properties

Hardness of 7 on the Mohs scale, vitreous luster, trigonal crystal system, white to purple angular banding (chevron pattern), no cleavage, specific gravity 2.65.

Formation & geological history

Formed in hydrothermal veins and cavities within volcanic or metamorphic rocks, where quartz crystal growth layers alternated with milky quartz and iron-rich amethyst layers due to changes in fluid composition and natural irradiation.

Uses & applications

Commonly carved and polished into ornamental shapes such as eggs, spheres, and cabochons, as well as used in lapidary jewelry, decorative items, and metaphysical crystal healing practices.

Geological facts

Chevron amethyst is a natural combination of purple amethyst and white milky quartz that creates V-shaped 'chevron' or striped bands. Amethyst gets its purple hue from natural gamma radiation interacting with trace iron ions in the crystal lattice.

Field identification & locations

Identified by its distinctive alternating white and purple bands and hardness (scratches glass). Prominently found in Brazil, India, Madagascar, Russia, and Zambia.