sedimentary
Banded Carnelian Agate
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness: 6.5-7 on Mohs scale; Color: Translucent orange to reddish-brown with white or lighter orange bands; Luster: Waxy to vitreous; Structure: Microcrystalline (Cryptocrystalline)
- Hardness
- 6
- Luster
- Waxy to vitreous
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Physical properties
Hardness: 6.5-7 on Mohs scale; Color: Translucent orange to reddish-brown with white or lighter orange bands; Luster: Waxy to vitreous; Structure: Microcrystalline (Cryptocrystalline)
Formation & geological history
Formed primarily in volcanic environments where silica-rich groundwater fills cavities in igneous rock, allowing the mineral to precipitate in layers over time.
Uses & applications
Extensively used for jewelry, lapidary art, beads, carvings, and as a healing stone in metaphysical communities.
Geological facts
Carnelian was used as early as the 4th millennium BC in Mehrgarh for decorative beads. It was highly prized by Ancient Egyptians and Romans for signet rings.
Field identification & locations
Identified by its distinctive translucency combined with concentric or parallel banding. Best found in gravel beds or volcanic regions such as those in India, Brazil, or Uruguay.
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