mineral

Dyed Purple Agate Sliced

Silicon Dioxide (SiO2) with artificial pigment

AI-generated identification · may be incorrect

Hardness: 6.5-7 Mohs; Color: Artificially dyed purple with banded concentric layers; Luster: Vitreous to waxy; Structure: Microcrystalline quartz (chalcedony)

Hardness: 6
Color: Artificially dyed purple with banded concentric layers
Luster: Vitreous to waxy

Identified July 5, 2026More mineral →

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Physical properties

Hardness: 6.5-7 Mohs; Color: Artificially dyed purple with banded concentric layers; Luster: Vitreous to waxy; Structure: Microcrystalline quartz (chalcedony)

Formation & geological history

Formed in volcanic rock cavities or ancient hydrothermal veins where silica-rich fluids deposited layers over time. This specimen has been sliced and chemically dyed to achieve the neon purple hue.

Uses & applications

Decorative items, coasters, jewelry, and metaphysical uses (healing crystals)

Geological facts

Natural agate is rarely this vibrant purple; almost all bright pink, purple, or blue agates found in shops are dyed using metal salts and heat treatment. Agate was named after the Achates River in Sicily.

Field identification & locations

Identify by looking for concentric 'banding' layers and a translucent quality. Look for intense pigment concentrations in tiny cracks, which indicates artificial dyeing. Common in Brazil and Uruguay.