mineral

Tumbled amber-colored pebble

Likely quartz/chert or iron-stained chalcedony; exact identification requires testing

AI-generated identification · may be incorrect

Opaque to slightly translucent brown-gold, smoothly waterworn or tumbled, with dull-to-waxy luster and no visible cleavage. Estimated hardness is roughly 6–7 Mohs if quartz-rich; specific gravity about 2.6, though appearance alone cannot exclude amber or glass.

Identified September 2, 2026More mineral →

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At a glance

Common name: Tumbled amber-colored pebble
Scientific name: Likely quartz/chert or iron-stained chalcedony; exact identification requires testing
Category: mineral
Identified: September 2, 2026
Method: Standard

AI Estimated Value

Typically $1–$10 as a common pebble or tumbled stone; approximately $10–$100+ if confirmed as attractive natural amber or collectible lapidary material.

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

Formation & geological history

Most likely a siliciclastic or microcrystalline quartz pebble rounded by stream, wave, or tumbling action; its geological age is indeterminate. Amber-colored iron oxides or organic impurities may produce the brown coloration.

Uses & applications

Suitable as a lapidary, craft, landscaping, or decorative stone; quality translucent material could be polished for jewelry. Value is generally low unless testing reveals collectible amber or unusual chalcedony.

Geological facts

The smooth shape indicates abrasion rather than crystal growth. A scratch test, streak test, magnification, UV response, and specific-gravity measurement are needed for confident identification.

Field identification & locations

Common possibilities include brown chert, jasper, quartzite, chalcedony, or amber; found in river gravels, beaches, and glacial deposits worldwide. It should not scratch with a steel knife if quartz-rich; amber is much softer and may float in concentrated salt water.