Rock Identifier
Amethyst Cluster (Silicon Dioxide (Quartz), SiO2) — mineral
mineral

Amethyst Cluster

Silicon Dioxide (Quartz), SiO2

AI-generated identification · may be incorrect

Hardness of 7 on the Mohs scale, distinct purple to violet color, vitreous luster, and hexagonal crystal system with no cleavage.

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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.