Rock Identifier
Faceted gemstone pendant, likely quartz or citrine (Indeterminate from photograph; likely quartz (SiO₂), possibly yellow citrine or treated quartz) — gemstone
gemstone

Faceted gemstone pendant, likely quartz or citrine

Indeterminate from photograph; likely quartz (SiO₂), possibly yellow citrine or treated quartz

AI-generated identification · may be incorrect

Small, multifaceted transparent-to-golden stone mounted in a metal pendant. Quartz has Mohs hardness 7, vitreous luster, trigonal crystal structure, no cleavage, and specific gravity about 2.65; the setting obscures diagnostic features.

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Physical properties

Small, multifaceted transparent-to-golden stone mounted in a metal pendant. Quartz has Mohs hardness 7, vitreous luster, trigonal crystal structure, no cleavage, and specific gravity about 2.65; the setting obscures diagnostic features.

Formation & geological history

Quartz crystallizes in hydrothermal veins and igneous cavities, commonly during Paleozoic–Recent geological events; citrine’s yellow color may be natural or heat-induced. The pendant is a human-processed geological specimen.

Uses & applications

Used in jewelry and ornamental settings; value depends on confirmed identity, color, clarity, cut, carat weight, and the precious-metal setting.

Geological facts

The visible bright flashes may result from faceting and reflective inclusions rather than metallic content. A photograph cannot reliably distinguish citrine from yellow glass or treated quartz.

Field identification & locations

Inspect with a loupe for natural inclusions, test hardness only on an inconspicuous area, and obtain refractive-index or gemological testing for identification. Quartz and citrine occur worldwide, notably Brazil, Madagascar, Uruguay, and the United States.