sedimentary
Dyed Blue Agate
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, vitreous luster, cryptocrystalline structure, conchoidal fracture, specific gravity of 2.6-2.7.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, vitreous luster, cryptocrystalline structure, conchoidal fracture, specific gravity of 2.6-2.7.
Formation & geological history
Formed by the deposition of silica-rich groundwater in cavities of ancient volcanic or sedimentary rocks, often artificially dyed blue.
Uses & applications
Widely used in jewelry, ornamental carvings, polished display pieces, and metaphysical collections.
Geological facts
Agate has been used since antiquity for gemstones and seals. This specific vibrant blue color is almost always achieved through artificial dye enhancement.
Field identification & locations
Identified by its waxy to vitreous luster, banded microcrystalline matrix, and high hardness. Commonly sourced globally, with major deposits in Brazil and India.
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