metamorphic
Quartzite
Metamorphic Quartz Rock (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale. Color ranges from white to grey with glassy luster and massive or granular crystal structure.
Identified More metamorphic →
Explore Quartzite in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 7 on the Mohs scale. Color ranges from white to grey with glassy luster and massive or granular crystal structure.
Formation & geological history
Formed from quartz-rich sandstone subjected to intense heat and pressure during tectonic metamorphism over millions of years.
Uses & applications
Used in construction, as crushed stone for roads, dimension stone, and occasionally in decorative items or countertops.
Geological facts
Quartzite is extremely durable and resistant to chemical weathering, often forming prominent mountain ridges.
Field identification & locations
Identified in the field by its hardness and inability to be scratched by a steel knife; common worldwide in metamorphic belts.
More like this
