igneous
Quartz Vein in Granite
Silicon Dioxide (SiO2) within intrusive igneous host
AI-generated identification · may be incorrectMohs hardness of 7, white to translucent color, vitreous luster, hexagonal crystal system, and lack of cleavage.
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Physical properties
Mohs hardness of 7, white to translucent color, vitreous luster, hexagonal crystal system, and lack of cleavage.
Formation & geological history
Formed through hydrothermal fluid precipitation filling fractures in cooling plutonic rocks during ancient geological periods.
Uses & applications
Used in aggregate, dimension stone, silica extraction for electronics, and as a popular specimen for mineral collectors.
Geological facts
Quartz veins are the primary geological structures responsible for hosting high-grade lode gold deposits worldwide.
Field identification & locations
Easily identified in the field by high relief, white color, and inability to scratch with a steel blade; found globally in mountainous and shield regions.
