Rock Identifier
Bronze or iron-age decorated pottery sherd (Archaeological ceramic fragment; likely fired clay with impressed or molded decoration, not a natural rock) — fossil
fossil

Bronze or iron-age decorated pottery sherd

Archaeological ceramic fragment; likely fired clay with impressed or molded decoration, not a natural rock

AI-generated identification · may be incorrect

Porous, tan-gray, granular material with a circular relief motif and dark inclusions; ceramic hardness is typically about 5–7 Mohs, with a dull, noncrystalline surface and no mineral cleavage.

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Physical properties

Porous, tan-gray, granular material with a circular relief motif and dark inclusions; ceramic hardness is typically about 5–7 Mohs, with a dull, noncrystalline surface and no mineral cleavage.

Formation & geological history

Formed from clay shaped and kiln-fired by humans, then weathered or broken; its age cannot be determined from the image, but the ornament may indicate an archaeological artifact rather than a geological specimen.

Uses & applications

No ordinary industrial or jewelry use; potential archaeological or historical significance, subject to provenance and legal restrictions.

Geological facts

The concentric raised design and uniformly porous texture strongly suggest decorated pottery or a clay seal fragment, not stone or a fossil. A hand lens may reveal vitrified clay, temper grains, and glaze remnants.

Field identification & locations

Test cautiously: ceramic commonly has angular breaks, visible temper, and a fired interior; do not acid-test or scratch an artifact. Provenance, excavation context, and laboratory analysis are needed for identification.

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