gemstone
Orange Carnelian
Silicon dioxide (Chalcedony variety SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, orange to reddish-brown color, vitreous to waxy luster, microcrystalline crystal structure, and specific gravity around 2.6.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, orange to reddish-brown color, vitreous to waxy luster, microcrystalline crystal structure, and specific gravity around 2.6.
Formation & geological history
Forms in low-temperature hydrothermal environments and silica-rich groundwater cavities within volcanic or sedimentary rocks.
Uses & applications
Widely used in cabochons, beads, carved intaglios, and jewelry since ancient times.
Geological facts
Carnelian was prized in ancient Egypt as a stone of rebirth and was frequently placed in tombs to protect the dead in the afterlife.
Field identification & locations
Identify by its distinct translucent orange hue, waxy luster, and conchoidal fracture. Found worldwide, notably in Brazil, India, and Madagascar.
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