gemstone

Faceted yellow gemstone, possibly citrine

Unconfirmed from the image; if citrine, it is iron-colored quartz (SiO₂).

AI-generated identification · may be incorrect

Transparent golden-yellow, glassy luster, and faceted; hardness and crystal structure cannot be established visually. The central feature may be a mounting or drill hole, so identification is uncertain.

Identified October 3, 2026More gemstone →

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Physical properties

Formation & geological history

Natural citrine forms when iron-bearing quartz is exposed to heat in geological settings; much commercial citrine is heat-treated amethyst. The pictured item may instead be glass or another material, which a photograph cannot distinguish reliably.

Uses & applications

Cut yellow gemstones are used in jewelry and collecting; value depends on confirmed material, size, clarity, and workmanship.

Geological facts

Yellow appearance alone does not identify citrine; topaz, treated quartz, and glass can look similar.

Field identification & locations

A gemologist can test refractive index and hardness; avoid scratch tests on a finished piece. Common citrine sources include Brazil, Madagascar, and Zambia.