gemstone
Dyed Blue Agate
Silicon Dioxide (Chalcedony with artificial dye, SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, vibrant blue color from artificial treatment, waxy to vitreous luster, and microcrystalline structure.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, vibrant blue color from artificial treatment, waxy to vitreous luster, and microcrystalline structure.
Formation & geological history
Formed in cavities of volcanic and metamorphic rocks through the deposition of silica-rich groundwater over millions of years, later enhanced by human dyeing.
Uses & applications
Widely used in jewelry, ornamental carvings, metaphysical practices, and decorative tumbled stones.
Geological facts
Natural bright blue chalcedony is extremely rare, so most vibrant blue agates on the market are artificially dyed using porous gray or white chalcedony.
Field identification & locations
Easily identified by its conchoidal fracture, waxy luster, and unnaturally vibrant blue color that often concentrates in micro-fractures.
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