metamorphic
Quartzite
Metamorphic Quartz Rock (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, typically white, gray, or yellowish, vitreous luster, non-foliated massive crystal structure.
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Physical properties
Hardness of 7 on the Mohs scale, typically white, gray, or yellowish, vitreous 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, manufacturing of silica bricks, and occasionally as an ornamental stone.
Geological facts
Quartzite is extremely durable and resistant to chemical weathering, often forming prominent mountain ridges.
Field identification & locations
Identified by its high hardness that scratches glass and lack of reactivity to acid; commonly found globally in mountain-building belts.
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