mineral

Chevron Amethyst

Silicon Dioxide (SiO2) with Iron impurities

Hardness: 7 on the Mohs scale; Color: Distinctive bands of purple and white; Luster: Vitreous (glassy); Crystal Structure: Hexagonal (trigonal); Cleavage: None/Conchoidal fracture; Specific Gravity: 2.65.

Hardness: 7 on the Mohs scale
Color: Distinctive bands of purple and white
Luster: Vitreous (glassy)

Identified March 28, 2026More mineral →

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Physical properties

Formation & geological history

Formed in volcanic cavities (geodes) where silica-rich fluids deposited layers of quartz and amethyst over millions of years. The banding occurs due to fluctuations in iron content and irradiation during the growth process.

Uses & applications

Primarily used for lapidary work, decorative carvings, tumbling, and jewelry. It is highly valued in the metaphysical community and for cabochon rings and pendants.

Geological facts

Also known as 'Banded Amethyst' or 'Dogtooth Amethyst' because of its unique V-shaped white quartz patterns. It combines the strengthening properties of quartz with the stress-relieving properties of amethyst in folklore.

Field identification & locations

Identified in the field by its characteristic white quartz 'V' patterns or zig-zag bands amidst purple amethyst. Commonly sourced from Brazil, Uruguay, Africa, and India. Collectors look for sharp, high-contrast banding and deep purple saturation.

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