mineral
Amethyst Cluster
Silicon dioxide (Quartz variety), SiO2
AI-generated identification · may be incorrectHardness of 7 on Mohs scale, purple to violet color, vitreous luster, hexagonal crystal system, specific gravity of 2.65.
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Physical properties
Hardness of 7 on Mohs scale, purple to violet color, vitreous luster, hexagonal crystal system, specific gravity of 2.65.
Formation & geological history
Forms within gas cavities in volcanic rocks through the slow cooling of silica-rich hydrothermal solutions over millions of years.
Uses & applications
Widely used in high-end jewelry, decorative gemstone carvings, and spiritual crystal collections.
Geological facts
Its distinct purple coloration is caused by natural irradiation and trace amounts of iron substituting for silicon within the crystal lattice.
Field identification & locations
Easily identified by its crystalline purple druzy points lining a basaltic matrix; major deposits are found in Brazil, Uruguay, and Zambia.
