metamorphic
Quartzite
Metamorphic Quartzite
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, typically white to gray or pink, vitreous to dull luster, non-foliated massive crystal structure.
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Physical properties
Hardness of 7 on the Mohs scale, typically white to gray or pink, vitreous to dull luster, 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 in construction, as decorative stone, for making roofing tiles, and in manufacturing ferrosilicon.
Geological facts
Quartzite is extremely durable and resistant to chemical weathering, often forming prominent mountain ridges.
Field identification & locations
Identified by its high hardness that scratches glass and lack of reaction to acid; found globally in mountainous or ancient craton regions.
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