gemstone
Carnelian Agate
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, vibrant orange to red-brown color, vitreous to waxy luster, and microcrystalline crystal structure.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, vibrant orange to red-brown color, vitreous to waxy luster, and microcrystalline crystal structure.
Formation & geological history
Forms by the deposition of silica from groundwater in cavities of igneous and sedimentary rocks over millions of years.
Uses & applications
Widely used in ornamental carvings, polished worry stones, and jewelry making.
Geological facts
Carnelian has been prized since ancient times, frequently used in ancient Rome for signet rings and Egyptian funerary jewelry.
Field identification & locations
Easily identified by its translucent orange banding and conchoidal fracture, commonly found globally including Brazil, India, and the USA.
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