gemstone

Colorless faceted gemstone, likely quartz (rock crystal)

Quartz, SiO₂ (identification from image is uncertain)

AI-generated identification · may be incorrect

Colorless and transparent with a vitreous luster; quartz has Mohs hardness 7, a trigonal crystal structure, and no cleavage. Faceting and the photo alone cannot confirm the material; glass or another gem could look similar.

Identified October 11, 2026More gemstone →

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Physical properties

Formation & geological history

If quartz, it formed as silica crystallized in geological veins or cavities, across many geological ages and settings.

Uses & applications

Faceted quartz is used in affordable jewelry and collections; quartz also has major industrial uses in glass, electronics, and abrasives.

Geological facts

A gemologist can distinguish quartz from diamond, topaz, or glass using refractive-index and other gem tests; appearance alone is insufficient.

Field identification & locations

A round brilliant cut and apparent inclusions are visible, but these do not establish identity. Quartz occurs worldwide, notably in Brazil, Madagascar, and the Alps.