metamorphic
Quartzite
Metamorphic Quartz-rich Rock
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, typically white, gray, or pink with a sugary texture and vitreous luster.
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Physical properties
Hardness of 7 on the Mohs scale, typically white, gray, or pink with a sugary texture and vitreous luster.
Formation & geological history
Formed through the metamorphism of quartz sandstone under high heat and pressure, often during mountain-building events.
Uses & applications
Used extensively in construction, as crushed stone for roads, for decorative landscaping, and occasionally as dimension stone.
Geological facts
Quartzite is extremely durable and resistant to chemical weathering, which is why ridges formed of it often resist erosion to form prominent hills.
Field identification & locations
Identify by its inability to be scratched by glass and the fused quartz grains visible on broken surfaces. Found worldwide.
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