gemstone

Carnelian ring

Carnelian, a red-orange variety of chalcedony (microcrystalline quartz, SiO₂)

AI-generated identification · may be incorrect

The polished cabochon is translucent reddish orange with a waxy to vitreous luster. Quartz hardness is about 6.5–7 Mohs; crystals are microscopic, with no visible cleavage. The setting appears to be metal.

Identified September 26, 2026More gemstone →

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Physical properties

Formation & geological history

Carnelian forms when silica-rich fluids deposit chalcedony in cavities and fractures, often in volcanic rocks. Its precise geological age and source cannot be determined from the image.

Uses & applications

Used for cabochon jewelry, beads, and ornamental carving; the ring’s metal setting is not identifiable from the image.

Geological facts

Carnelian’s color commonly comes from iron impurities, and heating can deepen or alter its reddish tones.

Field identification & locations

Identify by its smooth, translucent orange-red appearance and hardness; confirmatory tests are not possible from the image. Carnelian occurs worldwide, notably in India, Brazil, and Uruguay.