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

Amethyst Cluster

Quartz (Silicon Dioxide, SiO2)

AI-generated identification · may be incorrect

Hardness 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 hydrothermal processes, typically precipitating from silica-rich solutions within gas cavities or fractures in volcanic and metamorphic rocks.

Uses & applications

Widely used in high-end and alternative jewelry, ornamental carvings, crystal healing, and as coveted display specimens for collectors.

Geological facts

Amethyst was historically considered a precious gemstone of equal value to diamond, ruby, and emerald until large deposits were discovered in Brazil.

Field identification & locations

Easily identified by its distinctive purple coloration and hard, glassy crystal points. Commonly sourced from Brazil, Uruguay, Zambia, and the USA.