mineral

Dyed Quartz Geode

Silicon Dioxide (SiO2) with artificial purple dye

Hardness: 7 on Mohs scale (quartz base). Color: Deep intense purple/violet from artificial pigment. Luster: Vitreous to dull. Crystal structure: Trigonal (microcrystalline/small quartz points lining cavity). Cleavage: None.

Hardness: 7 on Mohs scale (quartz base)
Color: Deep intense purple/violet from artificial pigment
Luster: Vitreous to dull

Identified July 25, 2026More mineral →

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Physical properties

Formation & geological history

Formed as a natural quartz geode in basaltic or sedimentary host rock through hydrothermal precipitation. The natural specimen was subsequently cut open and soaked in a purple chemical dye solution to enhance its color.

Uses & applications

Popular for home decor, crystal healing, metaphysical practices, costume jewelry, and novelty gift items.

Geological facts

Natural amethyst geodes have distinct hexagonal crystal terminations, whereas dyed quartz geodes often feature fine, sugary quartz crystals (druzy) coated uniformly with dye that pools in fractures and crevices.

Field identification & locations

Can be identified in the field or shop by checking for unnatural, oversaturated dye concentration in cracks, underlying white host rock, and lack of typical natural amethyst crystal geometry. Commonly exported from Morocco or Brazil.

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