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