gemstone

Dyed Agate

Silicon Dioxide (Chalcedony with artificial colorant), SiO2

AI-generated identification · may be incorrect

Hardness: 6.5-7 on the Mohs scale. Color: Bright artificially induced blue and white bands. Luster: Vitreous to waxy when polished. Crystal Structure: Trigonal (microcrystalline quartz). Cleavage: None.

Hardness: 6
Color: Bright artificially induced blue and white bands
Luster: Vitreous to waxy when polished

Identified August 7, 2026More gemstone →

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Physical properties

Formation & geological history

Formed through the deposition of silica from groundwater in the cavities of igneous and sedimentary rocks, subsequently cut, polished, and artificially dyed to enhance its vivid blue banding.

Uses & applications

Widely used in jewelry making, such as pendants, earrings, and rings, as well as in decorative ornaments and lapidary art.

Geological facts

Natural agates rarely occur in such bright, saturated blue tones; the vast majority of vibrant blue agates on the market have been color-enhanced using dyes and heat treatments.

Field identification & locations

Easily identified by its distinct concentric banding patterns combined with unnatural, highly saturated blue coloration. Commonly found in tourist shops and jewelry stores worldwide.