gemstone

Purple cabochon gemstone, likely charoite

Charoite, a complex potassium-calcium silicate mineral; identification from the image is uncertain

AI-generated identification · may be incorrect

Polished oval cabochon with violet-purple color and mottled, swirled inclusions. Charoite has Mohs hardness 5–6, silky-to-vitreous luster, and a monoclinic crystal structure; the stone’s surface pattern is consistent with, but does not confirm, charoite.

Identified September 26, 2026More gemstone →

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Physical properties

Formation & geological history

Charoite forms in metasomatic zones where alkaline igneous rocks interact with limestone. It is geologically rare and is known chiefly from the Murun Massif in Siberia, Russia.

Uses & applications

Used in cabochon jewelry, beads, and ornamental carvings; quality depends on color, pattern, and polish.

Geological facts

Charoite was formally recognized as a mineral in 1978 and is named after the Chara River region of Siberia.

Field identification & locations

Look for vivid violet color and distinctive fibrous or swirling patterns; other purple stones and treated materials can look similar, so confirmation may require gem testing.