metamorphic
Quartzite
Metamorphic Quartz Arenite
AI-generated identification · may be incorrectMohs hardness 7, typically pink, white, or gray with a vitreous to greasy luster and granular texture.
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Physical properties
Mohs hardness 7, typically pink, white, or gray with a vitreous to greasy luster and granular texture.
Formation & geological history
Formed through the metamorphism of quartz-rich sandstone under intense heat and pressure.
Uses & applications
Used in construction, as crushed stone for roads, and occasionally for decorative items.
Geological facts
Quartzite is extremely resistant to weathering and often forms prominent mountain ridges.
Field identification & locations
Identify by its non-reactive nature to acid and the way it fractures across quartz grains rather than around them.
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