mineral
Quartz fragment
Quartz (silicon dioxide, SiO₂)
AI-generated identification · may be incorrectSmall 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.
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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.
