metamorphic
Veined Quartzite Pebble
Metamorphosed quartz sandstone
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, gray color with distinct white quartz veins, vitreous luster, conchoidal fracture.
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Physical properties
Hardness of 7 on the Mohs scale, gray color with distinct white quartz veins, vitreous luster, conchoidal fracture.
Formation & geological history
Formed from quartz-rich sandstone subjected to intense heat and pressure over millions of years, often smoothed by water action.
Uses & applications
Used in landscaping, decorative stone, and collected as a natural geological specimen.
Geological facts
Quartzite is extremely durable and resistant to chemical weathering, often outlasting surrounding bedrock.
Field identification & locations
Identified by its high hardness (scratches glass) and intersecting white mineral veins; common in riverbeds and beaches worldwide.
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