
mineral
Amethyst Cluster
Silicon Dioxide (Quartz), SiO2
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, distinct purple to violet color, vitreous luster, and hexagonal crystal system with no cleavage.
Identified More mineral →
Explore Amethyst Cluster in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 7 on the Mohs scale, distinct purple to violet color, vitreous luster, and hexagonal crystal system with no cleavage.
Formation & geological history
Formed as hydrothermal solutions precipitate silica within gas cavities in volcanic or sedimentary rocks over millions of years.
Uses & applications
Widely utilized in fine jewelry, decorative home displays, and metaphysical healing practices.
Geological facts
The purple coloration results from natural irradiation and trace amounts of iron impurities within the quartz lattice.
Field identification & locations
Easily identified by its characteristic purple quartz crystal points embedded within a host rock matrix; commonly sourced from Brazil and Uruguay.