mineral

Clear quartz fragment

Quartz (silicon dioxide, SiO₂)

AI-generated identification · may be incorrect

Small colorless-to-pale-gray translucent fragment with vitreous luster and likely conchoidal fracture; quartz has Mohs hardness 7, no cleavage, hexagonal crystal structure, and specific gravity about 2.65.

Identified August 15, 2026More mineral →

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Physical properties

Formation & geological history

Forms in igneous, metamorphic, and hydrothermal environments through crystallization from silica-rich fluids or melts. The fragment’s geological age and exact source cannot be determined from the image.

Uses & applications

Used in glass, ceramics, electronics, abrasives, and geological collecting; transparent crystals may be used decoratively or as low-value gemstones.

Geological facts

Quartz is one of Earth’s most abundant minerals and commonly survives weathering because of its hardness and chemical resistance.

Field identification & locations

Identify by hardness—scratches ordinary glass—plus glassy luster, lack of cleavage, and white streak. Common worldwide, especially in granite, quartz veins, pegmatites, and sedimentary sands.