mineral
Dyed Blue Agate Slice
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness: 6.5-7 (Mohs scale); Color: Neon blue (artificial) with white and grey bands; Luster: Vitreous/Waxy; Structure: Cryptocrystalline; Cleavage: None; Specific Gravity: 2.58-2.64
- Hardness
- 6
- Color
- Neon blue (artificial) with white and grey bands
- Luster
- Vitreous/Waxy
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Physical properties
Hardness: 6.5-7 (Mohs scale); Color: Neon blue (artificial) with white and grey bands; Luster: Vitreous/Waxy; Structure: Cryptocrystalline; Cleavage: None; Specific Gravity: 2.58-2.64
Formation & geological history
Formed as a secondary deposit in volcanic rock cavities (geodes) where silica-rich groundwater precipitates over millions of years. This specific specimen has been artificially dyed used to enhance the natural banding.
Uses & applications
Primarily used for decorative ornaments, jewelry, coasters, and as healing stones in metaphysical practices.
Geological facts
Agates were named by Theophrastus, a Greek philosopher, who discovered the stone along the Achates River in Sicily. The vivid blue color in this specimen is achieved by soaking the porous stone in an iron or copper salt solution and then heating it.
Field identification & locations
Identify in the field by looking for translucent nodules with waxy surfaces. Natural agates rarely show this intensity of blue. Commonly found in Brazil, Uruguay, and the USA (Lake Superior region).
