mineral
Clear quartz crystal (likely quartz point or polished quartz)
Quartz, silicon dioxide (SiO₂)
AI-generated identification · may be incorrectAppears 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.
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Physical properties
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.
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.
