mineral
Milky quartz vein fragment
Quartz, silicon dioxide (SiO₂)
AI-generated identification · may be incorrectWhite to translucent, vitreous luster with irregular fracture and no obvious cleavage; Mohs hardness 7, trigonal crystal structure. The specimen appears quartz-rich, possibly with minor weathering or attached sediment.
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Physical properties
White to translucent, vitreous luster with irregular fracture and no obvious cleavage; Mohs hardness 7, trigonal crystal structure. The specimen appears quartz-rich, possibly with minor weathering or attached sediment.
Formation & geological history
Likely quartz deposited from silica-rich fluids in a crack in older host rock, then exposed by weathering; quartz veins form across many geological ages and settings.
Uses & applications
Quartz is used in glass, electronics, and construction aggregate; attractive pieces are collected or occasionally cut, though this fragment appears primarily a field specimen.
Geological facts
Quartz is one of Earth’s most abundant minerals and can persist after surrounding rock weathers away.
Field identification & locations
Look for glassy surfaces, hardness sufficient to scratch ordinary glass, and lack of cleavage; common in quartz veins worldwide. The image alone cannot confirm exact purity or host rock.
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