gemstone
Carnelian
Silicon Dioxide, SiO2
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, orange to reddish-brown color, waxy to vitreous luster, and conchoidal fracture with a microcrystalline structure.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, orange to reddish-brown color, waxy to vitreous luster, and conchoidal fracture with a microcrystalline structure.
Formation & geological history
Formed through the deposition of silica-rich solutions in cavities of volcanic rocks and sedimentary environments over millions of years.
Uses & applications
Widely used in jewelry making, carved into beads or cabochons, and prized as a decorative or ornamental stone by collectors.
Geological facts
Carnelian was highly valued in ancient civilizations like Egypt and Rome for use in signet rings and amulets.
Field identification & locations
Identified by its translucent orange-red hue and waxy luster; commonly sourced from India, Brazil, and Uruguay.
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