gemstone

Dragon Vein Agate (Dyed/Fractured Quartz)

Silicon dioxide (SiO2)

Hardness of 7 on the Mohs scale, vitreous to waxy luster, microcrystalline crystal structure (trigonal), concoidal fracture, specific gravity of 2.60 to 2.65, characterized by a web-like crackled pattern enhanced by artificial dyeing.

Identified July 30, 2026More gemstone →

Explore Dragon Vein Agate (Dyed/Fractured Quartz) in the encyclopedia →

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Physical properties

Formation & geological history

Formed in low-temperature hydrothermal environments or cavities in volcanic and metamorphic rocks, typically millions of years ago, followed by artificial heat-treating, quenching, and dyeing to produce the characteristic cracked network.

Uses & applications

Commonly used in crystal healing, jewelry making, decorative tumbling, and as an ornamental gemstone.

Geological facts

Dragon vein agate is actually natural quartz or chalcedony that has been intentionally heat-treated and rapidly cooled to create micro-fractures, which are then soaked in dye to achieve the striking webbed appearance.

Field identification & locations

Easily identified by its glass-like luster, hardness capable of scratching glass, and the distinct, deep internal webbed fracturing filled with color. Found worldwide wherever chalcedony deposits occur, though commercially processed stones are produced globally.

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