metamorphic
Quartzite
Metamorphic Quartzite (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vitreous luster, white to gray or yellowish color, non-foliated massive crystal structure.
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Physical properties
Hardness of 7 on the Mohs scale, vitreous luster, white to gray or yellowish color, non-foliated massive crystal structure.
Formation & geological history
Formed from quartz-rich sandstone subjected to intense heat and pressure during tectonic compression.
Uses & applications
Used widely in construction, dimension stone, roofing tiles, and decorative landscaping.
Geological facts
Quartzite is extremely durable and resistant to weathering, often forming prominent mountain ridges.
Field identification & locations
Identified by its inability to be scratched by steel and lack of acid reaction; commonly found in mountainous or ancient craton regions.
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