gemstone
Agate
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, waxy to vitreous luster, translucent to opaque, with a microcrystalline structure.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, waxy to vitreous luster, translucent to opaque, with a microcrystalline structure.
Formation & geological history
Forms by the deposition of silica from groundwater in the cavities of igneous and sedimentary rocks over millions of years.
Uses & applications
Widely used in jewelry, decorative ornaments, and precision instruments due to its durability and attractive banding.
Geological facts
Agate was highly prized in ancient civilizations as a talisman and for creating intricate carved cameos.
Field identification & locations
Identified by its distinctive concentric color bands and conchoidal fracture, commonly found globally in volcanic rock cavities.
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