mineral
Chevron Amethyst
Silicon Dioxide (SiO2) with inclusions
Hardness: 7 on Mohs scale. Color: Deep purple with distinctive V-shaped or straight white quartz banding. Luster: Vitreous to glossy when polished. Crystal structure: Hexagonal/trigonal. Cleavage: None.
- Hardness
- 7 on Mohs scale
- Luster
- Vitreous to glossy when polished
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Physical properties
Hardness: 7 on Mohs scale. Color: Deep purple with distinctive V-shaped or straight white quartz banding. Luster: Vitreous to glossy when polished. Crystal structure: Hexagonal/trigonal. Cleavage: None.
Formation & geological history
Formed in hydrothermal veins and basaltic cavities (geodes) where layers of purple amethyst and white milky quartz intergrow during fluctuating temperature and silica-saturation conditions.
Uses & applications
Popular in gemstone collecting, tumbled stone sets, jewelry (cabochons, beads), decorative carvings, and metaphysical/healing crystal practices.
Geological facts
Also known as Dogtooth Amethyst or Banded Amethyst. The distinctive chevron patterns are caused by alternating growth phases of amethyst and milky quartz inside mineral veins.
Field identification & locations
Identified by its rich violet-purple coloration interleaved with sharp white quartz bands. Commonly mined in Brazil, India, Madagascar, Russia, and South Africa.
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