mineral
Chalcedony
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, waxy luster, microcrystalline quartz structure, and conchoidal fracture.
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Physical properties
Hardness of 7 on the Mohs scale, waxy luster, microcrystalline quartz structure, and conchoidal fracture.
Formation & geological history
Formed at low temperatures from silica-rich aqueous solutions filling cavities in rocks.
Uses & applications
Used widely in ornamental carvings, jewelry, and lapidary arts.
Geological facts
Chalcedony has been utilized by humans for thousands of years to create tools, beads, and intricate seals.
Field identification & locations
Identify by its waxy luster and translucency; commonly found globally in volcanic and sedimentary environments.
