fossil

Fossilized bone, likely a tooth or jaw fragment

Mineralized vertebrate bone; taxonomic identification requires clearer diagnostic anatomy

AI-generated identification · may be incorrect

Dense, brown-gray fossil with longitudinal surface texture and a lighter porous/cancellous-looking upper fragment; likely apatite-rich bone. Hardness is approximately 5 on Mohs scale, with dull to earthy luster and no obvious cleavage.

Identified August 13, 2026More fossil →

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At a glance

Common name: Fossilized bone, likely a tooth or jaw fragment
Scientific name: Mineralized vertebrate bone; taxonomic identification requires clearer diagnostic anatomy
Category: fossil
Identified: August 13, 2026
Method: Standard

AI Estimated Value

About $10-$100 for an unidentified fragment; $100-$1,000+ for a well-preserved, legally collected and scientifically identified specimen.

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

Buried vertebrate bone was progressively mineralized during diagenesis, commonly by replacement and pore-filling with apatite, silica, or calcite. Its geological age and species cannot be determined reliably from this photograph.

Uses & applications

Primarily a paleontological and collecting specimen; scientifically valuable if locality and provenance are documented. It has no normal industrial or jewelry use.

Geological facts

Fossil bone often preserves internal vascular canals and distinctive compact-versus-spongy structure. Surface wear and mineral staining can obscure whether this is bone, a tooth, or a jaw fragment.

Field identification & locations

Commonly found in river gravels, cave deposits, sedimentary basins, and badlands. Inspect for porous internal structure, parallel vascular grooves, and mineral-filled cavities; avoid acid or aggressive cleaning.