mineral

Amethyst (Rose Quartz type)

SiO2 (Silicon Dioxide)

Hardness: 7 (Mohs scale), Color: Pale pink to lavender, Luster: Vitreous, Crystal Structure: Trigonal/Hexagonal, Cleavage: None (Conchoidal fracture), Specific Gravity: 2.65

Identified June 28, 2026More mineral →

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Physical properties

Hardness: 7 (Mohs scale), Color: Pale pink to lavender, Luster: Vitreous, Crystal Structure: Trigonal/Hexagonal, Cleavage: None (Conchoidal fracture), Specific Gravity: 2.65

Formation & geological history

Formed in igneous pegmatites or hydrothermal veins as a result of magma cooling and silicon-rich fluids precipitating in voids. It can be found in rocks from the Precambrian era to recent.

Uses & applications

Primary use in jewelry as a gemstone, decorative carvings, and as a popular specimen for crystal collectors and spiritual practices.

Geological facts

The pink or purple hue is often caused by irradiation or trace amounts of iron or manganese within the quartz crystal lattice. Despite being common, high-clarity specimens are prized globally.

Field identification & locations

Identify by its hardness (scratches glass), lack of cleavage, and consistent pink/lavender color. Common locations include Brazil, Uruguay, and Madagascar.