metamorphic
Quartzite
Metamorphic Quartzite (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, typically white, gray, or pink with a vitreous to greasy luster and non-foliated massive structure.
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Physical properties
Hardness of 7 on the Mohs scale, typically white, gray, or pink with a vitreous to greasy luster and non-foliated massive structure.
Formation & geological history
Formed from quartz-rich sandstone subjected to intense heat and pressure during tectonic metamorphism over millions of years.
Uses & applications
Used in construction, as crushed stone for roads, for decorative interior surfaces, and occasionally in manufacturing silicon.
Geological facts
Quartzite is extremely durable and resistant to chemical weathering, often forming prominent mountain ridges where surrounding rocks erode away.
Field identification & locations
Identified by its inability to be scratched by steel and lack of acid reaction; commonly found in mountain belts worldwide.
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