mineral

Clear quartz crystal (likely quartz point or polished quartz)

Quartz, silicon dioxide (SiO₂)

AI-generated identification · may be incorrect

Appears colorless to cloudy and transparent/translucent, with a vitreous luster and faceted surfaces; quartz has hexagonal crystal structure, Mohs hardness 7, and no cleavage. The image shows a decorative display, so the exact specimen and whether it is natural or cut cannot be confirmed.

Identified September 26, 2026More mineral →

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Physical properties

Formation & geological history

Quartz forms in many geological settings, including silica-rich veins and cavities in igneous and metamorphic rocks; its age depends on the deposit and cannot be inferred from the image.

Uses & applications

Used for jewelry, ornaments, collecting, glassmaking, and electronics; this example appears to be decorative.

Geological facts

Quartz is one of Earth’s most abundant minerals and commonly occurs as clear rock crystal.

Field identification & locations

Look for glassy luster, hardness sufficient to scratch ordinary glass, and lack of cleavage; common worldwide. Similar-looking glass can be distinguished by careful hardness testing, though testing may damage an ornament.