metamorphic
Quartzite
Metamorphic Quartzite
AI-generated identification · may be incorrectMohs hardness of 7, typically white, gray, or greenish, vitreous luster, and granular texture with interlocking quartz crystals.
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Physical properties
Mohs hardness of 7, typically white, gray, or greenish, vitreous luster, and granular texture with interlocking quartz crystals.
Formation & geological history
Formed from quartz-rich sandstone subjected to intense heat and pressure during tectonic compression.
Uses & applications
Used in construction, road surfacing, decorative aggregates, and occasionally as a durable dimension stone.
Geological facts
Quartzite is extremely resistant to weathering and erosion, often forming prominent mountain ridges.
Field identification & locations
Identify by its non-foliated texture and inability to be scratched by a steel knife; common globally in mountain belts.
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