metamorphic
Quartzite
Quartzite
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, typically white, gray, or yellowish, vitreous luster, granoblastic texture, breaks through quartz grains rather than around them, specific gravity of 2.6-2.7
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Physical properties
Hardness of 7 on the Mohs scale, typically white, gray, or yellowish, vitreous luster, granoblastic texture, breaks through quartz grains rather than around them, specific gravity of 2.6-2.7
Formation & geological history
Formed from the metamorphism of pure quartz sandstone under high heat and pressure, often in tectonic environments
Uses & applications
Used in construction, as decorative stone, and in some industrial applications
Geological facts
Quartzite is incredibly resistant to chemical weathering and often forms ridges and resistant hilltops in landscapes.
Field identification & locations
Identify by its hardness (scratches glass), granular sugary appearance, and lack of reaction to acid. Found worldwide in metamorphic terrains.
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