metamorphic
Quartz Vein Quartzite
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectMohs hardness of 7, vitreous luster, conchoidal fracture, and white to brownish-gray coloration with distinct quartz veinlets.
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Physical properties
Mohs hardness of 7, vitreous luster, conchoidal fracture, and white to brownish-gray coloration with distinct quartz veinlets.
Formation & geological history
Formed through the regional metamorphism of quartz-rich sandstone or precipitation of silica-rich hydrothermal fluids filling fractures in host rock.
Uses & applications
Used primarily in landscaping, decorative items, construction aggregates, and as a tumbling stone for lapidary work.
Geological facts
Quartz veins are the primary geological source for hydrothermal mineral deposits, frequently hosting gold and other valuable ores.
Field identification & locations
Easily identified by its extreme hardness, lack of reactivity to acid, and characteristic interlocking quartz grains visible with magnification.
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