gemstone
Carnelian Arrowhead
Silicon Dioxide (Chalcedony variety, SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vibrant reddish-orange to brown color, waxy to vitreous luster, microcrystalline quartz structure with conchoidal fracture.
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Physical properties
Hardness of 7 on the Mohs scale, vibrant reddish-orange to brown color, waxy to vitreous luster, microcrystalline quartz structure with conchoidal fracture.
Formation & geological history
Formed through the deposition of silica-rich groundwater in cavities of rocks, shaped historically by human knapping from raw mineral nodules.
Uses & applications
Used historically as projectile points or tools, and valued today in jewelry, lapidary arts, and as a collectible artifact.
Geological facts
Carnelian was highly prized in ancient civilizations like Egypt and Rome for use in signet rings and amulets.
Field identification & locations
Identified by its waxy luster, conchoidal fracture, and distinct orange translucent hue; commonly found globally in river gravels and volcanic deposits.
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