mineral

Likely quartz-rich rock or mineral fragment

Quartz (SiO₂), possibly in a pegmatitic or granitic matrix

AI-generated identification · may be incorrect

The blurred specimen appears gray-white, translucent to opaque, and glassy with irregular fracture; quartz has Mohs hardness 7, no cleavage, and a specific gravity near 2.65. Exact texture and crystal form cannot be confirmed from the image.

Identified August 15, 2026More mineral →

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Physical properties

Formation & geological history

Quartz crystallizes from silica-rich magma or hydrothermal fluids, commonly in granite, pegmatite, and veins; its age depends on the host deposit. It may also be a weathered fragment from a larger rock.

Uses & applications

Common quartz is used in glass, ceramics, abrasives, electronics, and engineered stone; attractive clear crystals may be collected or cut as gemstones.

Geological facts

Quartz is one of Earth’s most abundant minerals and commonly shows conchoidal fracture rather than cleavage.

Field identification & locations

Look for glassy luster, lack of cleavage, and the ability to scratch ordinary glass; a steel nail should not scratch it. Common worldwide, especially in quartz veins, granite, pegmatites, and metamorphic rocks.