gemstone
Agate
Silicon dioxide (Chalcedony), SiO2
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, waxy to vitreous luster, translucent to opaque transparency, conchoidal fracture, and typically displays fine concentric banding or patterns.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, waxy to vitreous luster, translucent to opaque transparency, conchoidal fracture, and typically displays fine concentric banding or patterns.
Formation & geological history
Formed primarily within the cavities of volcanic and metamorphic rocks through the deposition of silica-rich groundwater solutions over long periods.
Uses & applications
Used extensively in jewelry, ornamental carvings, decorative objects, and occasionally for precision instruments due to its durability.
Geological facts
Agate is one of the most popular materials used in art and healing throughout history, prized by ancient civilizations like the Greeks and Egyptians for amulets and seals.
Field identification & locations
Easily identified by its distinctive banded patterns, waxy luster, and high hardness which scratches glass. Found worldwide, particularly in regions with historical volcanic activity.
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