metamorphic
Quartzite
Metamorphic Quartzite (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, typically white to gray or pink, with a vitreous to greasy luster and non-foliated massive structure.
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Physical properties
Hardness of 7 on the Mohs scale, typically white to gray or pink, with a vitreous to greasy luster and non-foliated massive 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 for decorative aggregates, walling, flooring tiles, and countertops due to its extreme durability.
Geological facts
Quartzite is so durable that weathering usually breaks down the rock into quartz sand rather than wearing down the stone itself.
Field identification & locations
Identified by its inability to be scratched by steel and its failure to fizz with hydrochloric acid; found globally in mountainous regions.
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