metamorphic

Light-colored rounded pebble (possibly quartzite)

Unidentified siliceous rock; quartzite is a plausible but unconfirmed identification

AI-generated identification · may be incorrect

Pale cream to tan, rounded and dull, with a fine granular or rough surface. If quartzite, it is mostly interlocking quartz (Mohs hardness ~7), but the image alone does not establish its mineral composition or hardness.

Identified October 13, 2026More metamorphic →

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Physical properties

Formation & geological history

Its rounded shape suggests natural abrasion during transport by water or ice. The rock type and geological age cannot be determined reliably from the photograph.

Uses & applications

Common pebbles may be used for landscaping, crafts, or collections; no specialized industrial or gemstone use is evident here.

Geological facts

The specimen is pictured beside a measuring scale, but its appearance is not distinctive enough for a confident rock identification.

Field identification & locations

A quartzite pebble should resist scratching by a steel knife and may show fused-looking quartz grains; check for acid reaction or visible layering to help rule out other rocks. Rounded pebbles occur in riverbeds, beaches, and glacial deposits worldwide.