gemstone
Carnelian Agate
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, reddish-orange to 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, reddish-orange to brown color, vitreous to waxy luster, and microcrystalline crystal structure.
Formation & geological history
Formed through the deposition of silica from groundwater in cavities of igneous and sedimentary rocks over millions of years.
Uses & applications
Widely used in jewelry, decorative carvings, and as a popular collector specimen.
Geological facts
Carnelian was highly prized in ancient civilizations like Egypt and Rome for use in signet rings and amulets.
Field identification & locations
Identified by its distinctive waxy luster, translucent orange-red banding, and conchoidal fracture. Commonly found in Brazil, India, and the USA.
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