
mineral
Chevron Amethyst
Silicon Dioxide (SiO2) with iron impurities
Hardness: 7 on Mohs scale; Color: V-shaped bands of purple and white; Luster: Vitreous; Crystal Structure: Trigonal/Hexagonal; Cleavage: None/Conchoidal fracture; Specific Gravity: 2.65
- Hardness
- 7 on Mohs scale
- Color
- V-shaped bands of purple and white
- Luster
- Vitreous
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Physical properties
Hardness: 7 on Mohs scale; Color: V-shaped bands of purple and white; Luster: Vitreous; Crystal Structure: Trigonal/Hexagonal; Cleavage: None/Conchoidal fracture; Specific Gravity: 2.65
Formation & geological history
Formed in hydrothermal veins and cavities (geodes) where alternating layers of amethyst and milky quartz or white quartz crystallize during cooling; often found in Precambrian to Cretaceous basaltic host rocks
Uses & applications
Popularly used for lapidary work, decorative carvings, beads, spiritual gemstones, and entry-level geological collections
Geological facts
Also known as Dog-tooth Amethyst, it is one of the most powerful 'third eye' stones in metaphysical belief. Its distinctive patterns are caused by natural internal stresses during the quartz growth process.
Field identification & locations
Identify by a sharp, repeating 'V' or zigzag pattern of purple and white. Primarily sourced from Brazil, Zambia, South Africa, and India. It is easily distinguished from solid amethyst by its high-contrast banding.
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Mineral/Rock
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mineral