mineral
Amethyst
Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, purple to violet color, vitreous luster, hexagonal crystal system, and conchoidal fracture with no true cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, purple to violet color, vitreous luster, hexagonal crystal system, and conchoidal fracture with no true cleavage.
Formation & geological history
Formed within gas cavities in volcanic rocks through hydrothermal solutions rich in iron at low temperatures.
Uses & applications
Widely used in jewelry, ornamental carvings, and as a popular mineral specimen for collectors.
Geological facts
The purple color is caused by irradiation of trace iron impurities integrated into the quartz lattice.
Field identification & locations
Identify by its distinctive purple coloration, crystal form, and scratch resistance against glass.
