metamorphic
Quartzite
Metamorphic Quartz Arenite
AI-generated identification · may be incorrectMohs hardness 7, typically pink, white, or gray with a vitreous to greasy luster, non-foliated massive crystal structure.
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Physical properties
Mohs hardness 7, typically pink, white, or gray with a vitreous to greasy luster, 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 in construction, road aggregates, decorative building stone, and occasionally carved countertops.
Geological facts
Quartzite is extremely durable and resistant to chemical weathering, often forming prominent mountain ridges.
Field identification & locations
Identified by its inability to be scratched by steel and lack of effervescence with acid; found globally in ancient orogenic belts.
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