gemstone
Green Agate
Silicon Dioxide (Chalcedony), SiO2
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, vibrant green color usually from artificial dying, vitreous to waxy luster, and microcrystalline crystal structure.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, vibrant green color usually from artificial dying, vitreous to waxy luster, and microcrystalline crystal structure.
Formation & geological history
Formed in cavities of volcanic and metamorphic rocks through the deposition of silica-rich groundwater over millions of years.
Uses & applications
Widely used in jewelry making as polished beads, cabochons, and for decorative carvings or ornamental objects.
Geological facts
Natural green agate is extremely rare, so most specimens on the market are artificially enhanced or dyed grey chalcedony.
Field identification & locations
Identified by its conchoidal fracture, microcrystalline texture, and hardness capable of scratching glass; commonly sourced from Brazil and India.
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