mineral

Dyed Blue Agate Slice

Silicon Dioxide (SiO2) with artificial dye

AI-generated identification · may be incorrect

Hardness: 6.5-7 on Mohs scale. Luster: Vitreous to waxy. Crystal structure: Hexagonal (cryptocrystalline). Color: Naturally translucent gray/white but artificially dyed vibrant blue. Specific gravity: 2.58-2.64.

Hardness: 6
Luster: Vitreous to waxy

Identified July 1, 2026More mineral →

Explore Dyed Blue Agate Slice in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Formation & geological history

Formed as secondary deposits in volcanic rock cavities (vesicles) where silica-rich groundwater precipitates over millions of years. This specific slice is a cut section of a geode nodule.

Uses & applications

Decorative use, coasters, jewelry pendants, and metaphysical displays. Commonly sold in gift shops and mineral shows.

Geological facts

While agate can naturally be blue (known as Blue Lace Agate), the electric blue seen here is almost always achieved through chemical dyeing, a common practice since ancient Roman times to enhance natural banding.

Field identification & locations

Identify by the concentric banding patterns and the porous nature of the outer 'rind' which allows it to absorb dyes. It is a common find in Brazil and Uruguay.