metamorphic

Light-colored rounded pebble, likely quartzite

Quartzite, composed predominantly of quartz (SiO₂); identification is tentative from the image

AI-generated identification · may be incorrect

Creamy beige, fine-grained and matte, with a rounded, water-worn shape. Quartz has Mohs hardness 7 and a trigonal crystal structure, but individual grains and cleavage are not discernible here.

Identified October 15, 2026More metamorphic →

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At a glance

Common name: Light-colored rounded pebble, likely quartzite
Scientific name: Quartzite, composed predominantly of quartz (SiO₂); identification is tentative from the image
Category: metamorphic
Identified: October 15, 2026
Method: Standard

AI Estimated Value

About $0–$5 for an ordinary pebble; more only if distinctive, unusually attractive, or part of a documented collection.

Not an official valuation

AI estimate for general interest only — not an appraisal. Actual value depends on condition, provenance, and market demand. Verify with a professional before buying, selling, or insuring.

This identification was generated by AI and may contain errors. Verify important details before relying on them — and never use an AI result to judge whether a specimen is safe to handle. Read the full disclaimer

Physical properties

Creamy beige, fine-grained and matte, with a rounded, water-worn shape. Quartz has Mohs hardness 7 and a trigonal crystal structure, but individual grains and cleavage are not discernible here.

Formation & geological history

Quartzite forms when quartz-rich sandstone is recrystallized by heat and pressure; its age depends on the source rock and metamorphic event. The pebble’s smoothness suggests transport and abrasion by water or sediment.

Uses & applications

Small pebbles are mainly used for landscaping, crafts, or collecting; quartzite is also used as decorative and construction stone.

Geological facts

Quartzite is generally harder and more resistant to weathering than its sandstone precursor.

Field identification & locations

A pale, dense pebble with a sugary or fused-grain texture may be quartzite; a close view or hardness test would help distinguish it from other light-colored rocks. Quartzite occurs worldwide in metamorphic terrains and river or beach gravels.