Blue Dyed Agate

Physical Properties

Hardness: 6.5-7 on Mohs scale; Color: Cyan/Teal (artificially enhanced); Luster: Vitreous to waxy; Crystal Structure: Trigonal (cryptocrystalline); Cleavage: None; Specific Gravity: 2.58-2.64

Formation & Geological History

Formed via deposition of silica from groundwater in the cavities of igneous rocks. The vibrant blue color is achieved through a chemical dye process after the stone is sliced and polished.

Uses & Applications

Primarily used for decorative jewelry, wind chimes, coasters, and as healing stones in metaphysical practices.

Geological Facts

Natural blue agate (like Blue Lace Agate) is usually pale and banded. The intense, uniform teal color in this specimen is a hallmark of the dyeing technique commonly used on Brazilian agate slices.

Field Identification & Locations

Identify by the bright, unnatural hue concentrated in more porous bands. Commonly found in volcanic regions of Brazil and Uruguay before being exported for processing.

Identified on: 5/2/2026

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