sedimentary
Tumbled Agate
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, waxy luster, conchoidal fracture, and displays characteristic banded patterns.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, waxy luster, conchoidal fracture, and displays characteristic banded patterns.
Formation & geological history
Formed through the deposition of silica-rich groundwater in hollows of ancient volcanic and metamorphic rocks over millions of years.
Uses & applications
Widely used in ornamental carvings, tumbling, jewelry making, and lapidary arts.
Geological facts
Agate has been prized since antiquity as an amulet and decorative gemstone, utilized by the ancient Greeks and Egyptians.
Field identification & locations
Easily identified by its translucent banded layers and high scratch resistance, commonly found globally in volcanic rock cavities.
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