metamorphic
Quartzite Pebble
Metamorphic Quartzite
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vitreous luster, white to yellowish-brown color, and conchoidal fracture.
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Physical properties
Hardness of 7 on the Mohs scale, vitreous luster, white to yellowish-brown color, and conchoidal fracture.
Formation & geological history
Formed from quartz-rich sandstone subjected to intense heat and pressure over millions of years.
Uses & applications
Used in landscaping, construction aggregates, and occasionally as a decorative stone.
Geological facts
Quartzite is extremely durable and resistant to chemical weathering, often outlasting other rocks in riverbeds.
Field identification & locations
Identify by its hardness (scratches glass) and lack of fizzing with acid; commonly found in river gravels and ancient beach deposits.
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