metamorphic
Quartzite
Metamorphic Quartz Rock, SiO2
AI-generated identification · may be incorrectHardness of 7 on Mohs scale, vitreous luster, white to brown or reddish color, interlocking crystalline structure.
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Physical properties
Hardness of 7 on Mohs scale, vitreous luster, white to brown or reddish color, interlocking crystalline structure.
Formation & geological history
Formed from quartz-rich sandstone subjected to high heat and tectonic pressure during regional metamorphism.
Uses & applications
Used in construction, road aggregate, manufacturing of silica bricks, and occasionally as an ornamental stone.
Geological facts
Quartzite is extremely durable and resistant to chemical weathering, often forming high mountain ridges.
Field identification & locations
Identify by its hard, non-foliated crystalline texture that does not fizz with acid; commonly found worldwide in mountainous or ancient craton regions.
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