Rock Identifier
Chevron Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral
mineral

Chevron Amethyst

Silicon Dioxide (SiO2) with iron impurities

Hardness: 7 on Mohs scale. Color: Alternating bands of purple amethyst and white/grey quartz. Luster: Vitreous (glassy). Crystal Structure: Hexagonal (trigonal). Cleavage: None (conchoidal fracture). Specific Gravity: 2.65.

Hardness
7 on Mohs scale
Color
Alternating bands of purple amethyst and white/grey quartz
Luster
Vitreous (glassy)
Identified More mineral

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Physical properties

Hardness: 7 on Mohs scale. Color: Alternating bands of purple amethyst and white/grey quartz. Luster: Vitreous (glassy). Crystal Structure: Hexagonal (trigonal). Cleavage: None (conchoidal fracture). Specific Gravity: 2.65.

Formation & geological history

Formed in hydrothermal veins or cavities within igneous rocks (primarily basalt). The 'Chevron' pattern occurs through alternating periods of crystal growth between amethyst and milky quartz, often occurring in various geological eras from Precambrian to the present.

Uses & applications

Predominantly used for jewelry (beads, cabochons), metaphysical products, decorative carvings, and as a popular specimen for mineral collectors.

Geological facts

Chevron Amethyst, also known as 'Banded Amethyst' or 'Dogtooth Amethyst', is a combination of amethyst and white quartz that forms a 'V' shaped pattern. It is considered one of the strongest 'Third Eye' stones in metaphysical traditions.

Field identification & locations

Identify in the field by its distinct purple and white V-shaped banding and its ability to scratch glass (hardness 7). Major sources include Brazil, Uruguay, Namibia, and India. It is often found in geodes or large rock masses.