mineral

Dyed Tumbled Quartz (Dragon's Vein Agate/Quartz)

Silicon Dioxide (SiO2) with artificial dye

Hardness of 7 on the Mohs scale, vitreous to waxy luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity around 2.65. This particular specimen features an intense pink color concentrated in internal fracture networks due to artificial dying and thermal shocking.

Identified July 30, 2026More mineral →

Explore Dyed Tumbled Quartz (Dragon's Vein Agate/Quartz) in the encyclopedia →

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Physical properties

Formation & geological history

Formed naturally through hydrothermal processes or sedimentary precipitation as quartz or chalcedony, then artificially heat-treated to create internal micro-fractures (crazing) and submerged in dye to achieve the bright pink coloration.

Uses & applications

Commonly used in decorative items, lapidary arts, jewelry, and metaphysical or crystal healing practices.

Geological facts

Many brightly colored tumbled stones sold in souvenir shops, such as hot pink, electric blue, or vibrant purple varieties, are naturally colorless or white quartz, chalcedony, or agate that have been enhanced with artificial dyes.

Field identification & locations

Easily identified by the unnatural, highly saturated color pooling heavily inside internal cracks and fractures while the host rock matrix remains relatively pale or white. Often marketed under trade names like 'dragon's vein agate' or 'mountain jade'.

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