Dyed Chalcedony (Agate)

Physical Properties

Hardness: 6.5-7 on Mohs scale; Color: Intense neon pink (unnatural); Luster: Vitreous to waxy; Structure: Microcrystalline; Cleavage: None/Conchoidal fracture; Translucent.

Formation & Geological History

Formed naturally as volcanic or sedimentary infillings of cavities (geodes), typically millions of years old. The vivid pink color is achieved through a modern industrial dyeing process where the porous stone is soaked in chemical pigments.

Uses & Applications

Used primarily for decorative purposes, inexpensive jewelry (beads, pendants), aquarium gravel, and as 'pocket stones' for children or amateur collectors.

Geological Facts

Agate is naturally porous, allowing it to soak up dyes like a sponge. Naturally occurring bright pink agates are extremely rare; almost all neon pink specimens on the market are artificially colored.

Field Identification & Locations

Identify by its overly saturated, uniform, or 'electric' color which does not occur in nature. Often found in souvenir shops and 'fill a bag' gem mining attractions.

Identified on: 5/5/2026

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