mineral

Dyed Chalcedony (Agate)

Silicon Dioxide (SiO2)

Hardness: 6.5-7 (Mohs scale), Color: Hot pink (artificially dyed), Luster: Waxy to vitreous, Crystal structure: Trigonal/Microcrystalline, Cleavage: None (conchoidal fracture), Specific gravity: 2.6-2.65

Hardness: 6

Identified June 4, 2026More mineral →

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Physical properties

Formation & geological history

Formed as a primary mineral in cavities and veins of volcanic rocks (basalts and rhyolites) through the deposition of silica from groundwater; later subjected to chemical dyeing processes.

Uses & applications

Used primarily for decorative purposes, jewelry (pendants and beads), ornamental items, and as a popular souvenir or healing crystal.

Geological facts

Natural agate is rarely this vibrant pink; most pink agates on the market are dyed using inorganic salts to penetrate the porous layers of the stone. Agate has been used since the Babylonian era for amulets.

Field identification & locations

Identify in the field by its waxy luster, conchoidal fracture (curved breaks), and hardness. Artificially colored stones often show color concentration in cracks or bands under magnification.