mineral
Quartz Vein Rock
Silicon Dioxide (SiO2)
Hardness of 7 on the Mohs scale, white to greyish color with weathered surface, vitreous to greasy luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, white to greyish color with weathered surface, vitreous to greasy luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.
Formation & geological history
Formed through hydrothermal processes where silica-rich fluids precipitate quartz into fractures and fissures in existing host rocks. Can be found in various geological settings globally.
Uses & applications
Used in landscaping, decorative stone, glass manufacturing, electronics, and as a gemstone when clear or colored.
Geological facts
Quartz is one of the most abundant minerals in Earth's continental crust and is exceptionally resistant to weathering.
Field identification & locations
Easily identified by its high hardness (scratches glass) and lack of cleavage. Common worldwide in stream beds, outcroppings, and veins.
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