metamorphic
Quartzite
Metamorphic Quartzite (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, typically white to gray, vitreous luster, non-foliated massive 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, typically white to gray, vitreous luster, non-foliated massive crystal structure.
Formation & geological history
Formed through the metamorphism of quartz-rich sandstone under intense heat and pressure over millions of years.
Uses & applications
Used widely in construction, road aggregate, manufacturing of silica bricks, and occasionally as a decorative dimension stone.
Geological facts
Quartzite is extremely durable and resistant to chemical weathering, often forming prominent mountain ridges.
Field identification & locations
Identified by its hard granular surface that does not scratch easily and fails to fizz with hydrochloric acid. Found globally in mountainous or ancient cratonic regions.
More like this
