Rock Identifier
Colorless faceted gemstone, likely glass or cubic zirconia (Uncertain; possible cubic zirconia (ZrO₂) or quartz (SiO₂), but the image may show a man-made simulant) — gemstone
gemstone

Colorless faceted gemstone, likely glass or cubic zirconia

Uncertain; possible cubic zirconia (ZrO₂) or quartz (SiO₂), but the image may show a man-made simulant

AI-generated identification · may be incorrect

Colorless, transparent, brilliant vitreous luster with many faceted surfaces; apparent hardness is roughly 7–8.5 Mohs if quartz or cubic zirconia. Strong glare and low-light photography prevent reliable assessment of cleavage, crystal structure, or specific gravity.

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Physical properties

Colorless, transparent, brilliant vitreous luster with many faceted surfaces; apparent hardness is roughly 7–8.5 Mohs if quartz or cubic zirconia. Strong glare and low-light photography prevent reliable assessment of cleavage, crystal structure, or specific gravity.

Formation & geological history

If cubic zirconia, it is laboratory-grown rather than geological; quartz forms in hydrothermal veins and igneous/metamorphic environments over geologic time. The regular round brilliant cut indicates human processing.

Uses & applications

Used primarily as jewelry or an ornamental stone; cubic zirconia is an inexpensive diamond simulant, while quartz may be used in jewelry and industry.

Geological facts

The photograph does not provide enough evidence to distinguish diamond, cubic zirconia, faceted quartz, or glass. A loupe, refractive-index measurement, thermal tester, and specific-gravity test would be more diagnostic.

Field identification & locations

Check for facet sharpness, doubling through the stone, inclusions, and dispersion; avoid scratch tests that can damage it. Common simulants are sold worldwide, whereas natural gem-quality quartz occurs in Brazil, Madagascar, the United States, and elsewhere.