metamorphic
Quartzite
Metamorphic Quartz Rock (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, white to grey color with yellow iron-staining, vitreous luster, non-foliated massive crystal structure.
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Physical properties
Hardness of 7 on the Mohs scale, white to grey color with yellow iron-staining, vitreous luster, non-foliated massive crystal structure.
Formation & geological history
Formed through the metamorphism of quartz sandstone under intense heat and tectonic pressure.
Uses & applications
Used in construction, road surfacing, manufacture of silica bricks, and decorative landscaping.
Geological facts
Extremely durable and resistant to chemical weathering, often forming prominent mountain ridges.
Field identification & locations
Identify by its non-foliated texture and inability to be scratched by a steel knife; commonly found worldwide in ancient mountain belts.
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