
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)
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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.
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