metamorphic
Quartzite
Metamorphic Quartz Rock (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, typically pink, white, or gray, with a vitreous to greasy luster and a non-foliated massive crystal structure.
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Physical properties
Hardness of 7 on the Mohs scale, typically pink, white, or gray, with a vitreous to greasy luster and a non-foliated massive crystal structure.
Formation & geological history
Formed through the metamorphism of quartz-rich sandstone under intense heat and pressure over millions of years.
Uses & applications
Used widely in construction, dimension stone, crushed stone for roadbeds, and occasionally for decorative items.
Geological facts
Quartzite is extremely durable and resistant to chemical weathering, often forming the highest ridges in mountainous landscapes.
Field identification & locations
Identify it by its inability to be scratched by steel and lack of reaction to acid; found globally in ancient mountain belts.
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