metamorphic
Quartzite
Quartzite
AI-generated identification · may be incorrectHardness: 7, Color: Greenish-yellow, Luster: Vitreous to greasy, Crystal structure: Massive (interlocking quartz grains), Cleavage: None, Specific gravity: 2.65
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Physical properties
Hardness: 7, Color: Greenish-yellow, Luster: Vitreous to greasy, Crystal structure: Massive (interlocking quartz grains), Cleavage: None, Specific gravity: 2.65
Formation & geological history
Formed by the metamorphism of quartz-rich sandstone. Found in various geological settings worldwide.
Uses & applications
Used in construction, as a decorative stone, and in some industrial applications.
Geological facts
Quartzite is very hard and resistant to weathering, making it a prominent ridge-forming rock in many landscapes.
Field identification & locations
Identify by its hardness (scratches glass), massive structure, and granular appearance. Found in areas with a history of regional metamorphism.
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