
metamorphic
Light-colored quartzite pebble (tentative)
Quartzite, composed mainly of quartz (SiO₂)
AI-generated identification · may be incorrectSmooth, rounded, cream-white pebble with faint tan veining; apparent dull to slightly waxy luster. Quartz hardness is 7 Mohs; quartzite has no cleavage and a granular, interlocking quartz texture, though the image does not resolve its grain size or confirm the rock type.
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Physical properties
Smooth, rounded, cream-white pebble with faint tan veining; apparent dull to slightly waxy luster. Quartz hardness is 7 Mohs; quartzite has no cleavage and a granular, interlocking quartz texture, though the image does not resolve its grain size or confirm the rock type.
Formation & geological history
If quartzite, it formed when quartz-rich sandstone was recrystallized by heat and pressure; its age cannot be determined from the photograph. The reported western North Carolina area has metamorphic rocks, making quartzite plausible, but the pebble could also be a vein-quartz fragment.
Uses & applications
Quartzite is used as crushed stone, road aggregate, and decorative building stone; this small pebble is mainly suitable for collecting or crafts.
Geological facts
A scratch test against glass can help distinguish quartz-rich material from softer look-alikes, but it is not definitive and can damage the specimen.
Field identification & locations
Look for a hard, sugary-granular texture and quartz grains fused across former grain boundaries to identify quartzite; massive milky quartz is another plausible match. Rounded shape suggests water or other transport; the image alone cannot establish provenance.
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