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

Amethyst

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, conchoidal fracture.

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Physical properties

Hardness of 7 on the Mohs scale, purple to violet color, vitreous luster, hexagonal crystal system, conchoidal fracture.

Formation & geological history

Forms within gas cavities in igneous rocks through hydrothermal solutions containing iron impurities and natural irradiation.

Uses & applications

Widely used in jewelry, ornamental carvings, and crystal collections.

Geological facts

Ancient Greeks believed amethyst prevented intoxication, deriving its name from the Greek word 'amethystos'.

Field identification & locations

Identified by its distinct purple color and crystal cluster formation; commonly sourced from Brazil, Uruguay, and Zambia.