mineral
Carnelian
Silicon Dioxide (Chalcedony variety, SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, reddish-orange to brown color, waxy to vitreous luster, and microcrystalline trigonal structure.
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Physical properties
Hardness of 7 on the Mohs scale, reddish-orange to brown color, waxy to vitreous luster, and microcrystalline trigonal structure.
Formation & geological history
Forms in volcanic cavities and sedimentary environments through the deposition of silica-rich solutions at low temperatures.
Uses & applications
Used widely in making gemstone jewelry, beads, talismans, and ornamental carvings.
Geological facts
Carnelian was highly prized by ancient Egyptians, who wore it as an amulet for protection in the afterlife.
Field identification & locations
Identify by its translucent brownish-red color and waxy luster; found worldwide including Brazil, India, and the USA.
