mineral
Chalcedony
SiO2 (Silicon Dioxide)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, waxy luster, and cryptocrystalline structure. Colors range widely from white to grey, blue, brown, and green.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, waxy luster, and cryptocrystalline structure. Colors range widely from white to grey, blue, brown, and green.
Formation & geological history
Formed via the precipitation of silica-rich fluids within cavities and fractures of rocks at low temperatures.
Uses & applications
Used extensively for ornamental carvings, gemstones, and metaphysical crystal healing collections.
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 characteristic waxy luster and conchoidal fracture. Commonly found in volcanic and sedimentary environments worldwide.
