gemstone
Carnelian
Silicon dioxide (Chalcedony variety, SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, vitreous to waxy luster, orange to red-orange color, and trigonal crystal system with cryptocrystalline structure.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, vitreous to waxy luster, orange to red-orange color, and trigonal crystal system with cryptocrystalline structure.
Formation & geological history
Forms in silica-rich groundwater solutions depositing within cavities of volcanic or sedimentary rocks, often associated with ancient hydrothermal activity.
Uses & applications
Widely used in high-end jewelry, carved intaglios, and metaphysical healing collections due to its rich historical use.
Geological facts
Carnelian was prized by ancient civilizations like the Egyptians and Romans for signet rings and amulets, often symbolizing courage and vitality.
Field identification & locations
Identified by its distinctive translucent orange-red hue and conchoidal fracture. Found globally in India, Brazil, Uruguay, and Madagascar.
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