metamorphic
Quartzite
Metamorphic Quartzite (SiO2)
AI-generated identification · may be incorrectHardness of 7 on Mohs scale, typically white to pinkish-gray in color, non-foliated texture, vitreous luster, and conchoidal fracture.
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Physical properties
Hardness of 7 on Mohs scale, typically white to pinkish-gray in color, non-foliated texture, vitreous luster, and conchoidal fracture.
Formation & geological history
Formed under high heat and pressure from quartz-rich sandstone during regional or contact metamorphism.
Uses & applications
Used widely in construction, as a decorative stone, and for manufacturing silica brick and glass.
Geological facts
Quartzite is extremely durable and resistant to chemical weathering, often forming prominent mountain ridges.
Field identification & locations
Scratch-resistant and does not effervesce with hydrochloric acid, distinguishing it from marble.
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