gemstone
Carnelian
Silicon Dioxide (Chalcedony variety)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, red to orange-brown color, waxy luster, and microcrystalline structure.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, red to orange-brown color, waxy luster, and microcrystalline structure.
Formation & geological history
Forms in silica-rich groundwater solutions depositing within cavities of volcanic or sedimentary rocks over millions of years.
Uses & applications
Used primarily in jewelry, cabochons, carved seals, and decorative ornamentation.
Geological facts
Carnelian was highly prized by ancient Egyptians, who wore it as an amulet to ensure safe passage to the afterlife.
Field identification & locations
Identify by its translucent reddish-orange hue and smooth waxy feel; commonly found globally including India, Brazil, and the USA.
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