metamorphic
Small rounded light-colored stone (likely quartzite or pale quartz)
Unidentified silica-rich pebble; possibly quartzite (mostly SiO₂)
AI-generated identification · may be incorrectCreamy gray, rounded and worn, with a fine granular to slightly sparkly surface and no visible cleavage. If quartzite, hardness is about 7 Mohs; identification and luster cannot be confirmed from the photo alone.
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Physical properties
Creamy gray, rounded and worn, with a fine granular to slightly sparkly surface and no visible cleavage. If quartzite, hardness is about 7 Mohs; identification and luster cannot be confirmed from the photo alone.
Formation & geological history
Could be a naturally weathered pebble from a silica-rich rock; quartzite forms when sandstone is metamorphosed. Its geological age and source cannot be determined visually.
Uses & applications
Small stones are commonly collected or used decoratively; quartzite is also used as aggregate, paving, and building stone.
Geological facts
The smooth shape suggests abrasion during transport or tumbling, but does not by itself establish the rock type.
Field identification & locations
A scratch test against glass and examination of a fresh, unweathered surface can help distinguish quartzite from softer pale stones. Similar pebbles occur in river, beach, and glacial deposits worldwide.
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