mineral

Likely quartz crystal fragment

Quartz (SiO₂), possibly a small tumbled or cleaved fragment

AI-generated identification · may be incorrect

Typically Mohs hardness 7, vitreous luster, colorless to milky white, translucent, and trigonal crystal structure; quartz lacks true cleavage and breaks conchoidally. The image is low-resolution, so identification is tentative.

Identified August 11, 2026More mineral →

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Physical properties

Formation & geological history

Quartz crystallizes from silica-rich hydrothermal fluids, igneous melts, or sedimentary veins; specimens may range from Precambrian to modern formations. Its small, bright piece may also be cut or polished.

Uses & applications

Used in glass, electronics, abrasives, and construction; clear attractive pieces are sold as inexpensive mineral specimens or jewelry material.

Geological facts

Quartz is one of Earth’s most abundant minerals and exhibits piezoelectricity, producing an electrical charge under pressure.

Field identification & locations

Look for glassy luster, translucency, hardness sufficient to scratch ordinary glass, and conchoidal fracture; common sources include Brazil, Madagascar, the United States, and worldwide quartz veins. A definitive identification requires a closer image or hardness and streak tests.