mineral
Amethyst Cluster
Quartz (Silicon Dioxide, 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 through the cooling of silica-rich solutions in gas cavities within volcanic rocks or hydrothermal veins over millions of years.
Uses & applications
Widely used in high-end jewelry, ornamental carvings, decorative mineral specimens, and crystal healing.
Geological facts
The purple color is caused by iron impurities combined with natural irradiation. It was historically considered a precious gemstone until large deposits were discovered.
Field identification & locations
Identified by its distinct purple quartz crystal points growing from a host matrix. Easily found in places like Brazil, Uruguay, and parts of the United States.
