Rock Identifier
Fossilized gastropod shell (Gastropoda indet.; shell originally composed mainly of aragonite (CaCO₃)) — fossil
fossil

Fossilized gastropod shell

Gastropoda indet.; shell originally composed mainly of aragonite (CaCO₃)

AI-generated identification · may be incorrect

The specimen has a tapered, spiraled shell with strong raised ribs and a cream-to-rust coloration. Original shell hardness was about 3–4 Mohs; fossilization may have replaced or coated the shell with calcite or other minerals, so composition and luster cannot be confirmed from the image.

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Physical properties

The specimen has a tapered, spiraled shell with strong raised ribs and a cream-to-rust coloration. Original shell hardness was about 3–4 Mohs; fossilization may have replaced or coated the shell with calcite or other minerals, so composition and luster cannot be confirmed from the image.

Formation & geological history

A marine snail shell was buried in sediment and preserved through mineralization. Its geological age and exact depositional environment cannot be determined from the photograph.

Uses & applications

Primarily valued for education, display, and fossil collecting; similar fossils can help interpret ancient marine environments.

Geological facts

The visible ribbing is ornamentation on the shell whorls, not a rock-layer pattern.

Field identification & locations

The coiled, tapering form and repeated ribs suggest a gastropod fossil. Identification to species or location requires the underside, aperture, scale, and provenance.

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