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

Amethyst Quartz (Chevron Amethyst)

Silicon Dioxide (SiO2) with iron impurities

Hardness 7 on Mohs scale; Color: purple/violet with white bands; Luster: vitreous (glassy); Crystal structure: Trigonal/Hexagonal; no cleavage; Conchoidal fracture; Specific gravity 2.65

Color
purple/violet with white bands
Luster
vitreous (glassy)
Identified More mineral

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Physical properties

Hardness 7 on Mohs scale; Color: purple/violet with white bands; Luster: vitreous (glassy); Crystal structure: Trigonal/Hexagonal; no cleavage; Conchoidal fracture; Specific gravity 2.65

Formation & geological history

Formed in hydrothermal veins or volcanic geodes where silica-rich fluids crystallized over millions of years. The white bands are typically milky quartz formed during fluctuating temperature or pressure cycles.

Uses & applications

Widely used in jewelry, decorative carvings, holistic therapy (healing crystals), and geological collecting.

Geological facts

Chevron amethyst is a combination of amethyst and white quartz, creating a V-shaped or striped pattern. It is one of the more powerful 'Third Eye' stones in metaphysical traditions.

Field identification & locations

Identify by its distinctive purple and white 'V' or 'Z' shaped bands. Commonly found in Brazil, Uruguay, and Africa. To identify, check for hardess (it should scratch glass) and look for the characteristic angular banding.