mineral

Quartz fragment

Quartz (silicon dioxide, SiO₂)

AI-generated identification · may be incorrect

Small opaque-to-translucent white fragment with a vitreous luster and irregular fracture; Mohs hardness 7, no cleavage, hexagonal crystal structure, and specific gravity about 2.65.

Identified September 20, 2026More mineral →

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Physical properties

Small opaque-to-translucent white fragment with a vitreous luster and irregular fracture; Mohs hardness 7, no cleavage, hexagonal crystal structure, and specific gravity about 2.65.

Formation & geological history

Likely broken or naturally weathered quartz from an igneous, metamorphic, or sedimentary host rock; quartz formed throughout geologic time, commonly in veins and silica-rich rocks.

Uses & applications

Used in glassmaking, ceramics, electronics, abrasives, construction aggregate, and occasionally as a gemstone or mineral specimen.

Geological facts

Quartz is one of Earth’s most abundant minerals and commonly forms clear, smoky, amethyst, or rose varieties; its hardness allows it to scratch ordinary glass.

Field identification & locations

Identify by its glassy appearance, lack of cleavage, hardness, and white streak; common worldwide in granite, quartz veins, sandstone, and hydrothermal deposits. The image is too limited for a precise variety identification.