mineral

Small polished white pebble, possibly quartz or chalcedony

Likely microcrystalline quartz (SiO₂), but the image is insufficient for confident identification

AI-generated identification · may be incorrect

White to cream, smooth and weakly lustrous with no visible crystals; quartz hardness is Mohs 7, noncleavable, conchoidally fracturing, and specific gravity about 2.65.

Identified August 26, 2026More mineral →

Explore Small polished white pebble, possibly quartz or chalcedony in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

At a glance

Common name: Small polished white pebble, possibly quartz or chalcedony
Scientific name: Likely microcrystalline quartz (SiO₂), but the image is insufficient for confident identification
Category: mineral
Identified: August 26, 2026
Method: Standard

AI Estimated Value

About $1–$5 for a small common tumbled pebble; higher value requires distinctive color, translucency, pattern, or verified gemstone identity.

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

White to cream, smooth and weakly lustrous with no visible crystals; quartz hardness is Mohs 7, noncleavable, conchoidally fracturing, and specific gravity about 2.65.

Formation & geological history

Could be a naturally water-worn quartz/chalcedony pebble or a tumbled specimen derived from silica-rich igneous or sedimentary rock; age cannot be determined visually.

Uses & applications

Used as a decorative tumbled stone, craft material, or inexpensive collection specimen; quartz varieties may also be used in glass, electronics, and abrasives.

Geological facts

The apparent rounded shape and uniform pale color suggest polishing or tumbling, though a naturally worn pebble is also possible.

Field identification & locations

Confirm with a hardness test: quartz should scratch ordinary glass, while a steel knife generally will not scratch it. Common sources include quartz-rich river gravels and commercial tumbling operations.