mineral
Carnelian Agate (Flame Carving)
Chalcedony (Microcrystalline Quartz, SiO2)
AI-generated identification · may be incorrectHardness 6.5-7 Mohs, waxy to vitreous luster, trigonal crystal system (cryptocrystalline), translucent peach to orange hue, and conchoidal fracture.
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Physical properties
Hardness 6.5-7 Mohs, waxy to vitreous luster, trigonal crystal system (cryptocrystalline), translucent peach to orange hue, and conchoidal fracture.
Formation & geological history
Formed by precipitation of silica from low-temperature hydrothermal fluids inside cavities of volcanic rocks, often colored by iron oxide impurities.
Uses & applications
Used widely in ornamental carvings, cabochons for jewelry, decorative polished display pieces, and metaphysical healing items.
Geological facts
Carnelian has been used as a gemstone and seal stone since ancient Egyptian and Sumerian times due to its fine grain and ease of taking a polish.
Field identification & locations
Identified by its microcrystalline texture, translucent glow, hardness capable of scratching glass, and lack of distinct cleavage; heavily sourced from Madagascar, Brazil, and India.
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