mineral
Amethyst Cluster
Quartz (Silicon Dioxide, SiO2)
AI-generated identification · may be incorrectHardness of 7 on Mohs scale, purple to violet color, vitreous luster, hexagonal crystal system, conchoidal fracture.
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Physical properties
Hardness of 7 on Mohs scale, purple to violet color, vitreous luster, hexagonal crystal system, conchoidal fracture.
Formation & geological history
Forms in hydrothermal veins or gas cavities within igneous rocks as silica-rich fluids cool over millions of years.
Uses & applications
Widely used in fine jewelry, decorative home displays, and metaphysical healing practices.
Geological facts
The purple color is caused by natural irradiation and trace amounts of iron substituting for silicon within the crystal lattice.
Field identification & locations
Identified easily by its distinct purple quartz crystal points growing within a matrix; found globally with notable deposits in Brazil and Uruguay.
