metamorphic
Quartz Vein in Metamorphic Rock
SiO2
AI-generated identification · may be incorrectHardness 7 on Mohs scale, grey to white color, vitreous luster, microcrystalline to macrocrystalline quartz structure, specific gravity 2.65.
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Physical properties
Hardness 7 on Mohs scale, grey to white color, vitreous luster, microcrystalline to macrocrystalline quartz structure, specific gravity 2.65.
Formation & geological history
Formed when silica-rich hydrothermal fluids precipitate quartz into fractures within pre-existing host rock during metamorphic activity.
Uses & applications
Used in aggregate, dimension stone, and industrial silica applications, while valued by collectors for structural geological samples.
Geological facts
Quartz veins are common pathways for hydrothermal ore deposits, often containing gold or other precious metals.
Field identification & locations
Easily identified in the field by contrasting white or light-colored quartz ribbons cutting through darker host rock; widely distributed globally.
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