fossil

Fossil gastropod shell

Fossilized gastropod, likely a small marine snail; exact genus cannot be determined from the image

AI-generated identification · may be incorrect

Small, rounded, spiral shell with tan coloration and a granular surface; likely calcite/aragonite, Mohs hardness about 3–4, nonmetallic luster, and coiled shell structure. Cleavage is not apparent.

Identified August 23, 2026More fossil →

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Physical properties

Small, rounded, spiral shell with tan coloration and a granular surface; likely calcite/aragonite, Mohs hardness about 3–4, nonmetallic luster, and coiled shell structure. Cleavage is not apparent.

Formation & geological history

Formed by a marine gastropod, then buried and preserved or mineral-replaced in sedimentary rock; age could range from Cenozoic to older without locality information.

Uses & applications

Primarily a teaching, display, or collectible specimen; fossils like this can help interpret ancient marine environments and sedimentary layers.

Geological facts

The visible spiral whorls and shell growth pattern distinguish it from most mineral nodules. Many fossil shells are partially replaced by calcite, silica, or iron minerals while retaining their original form.

Field identification & locations

Common in marine limestone, shale, and beach deposits worldwide; inspect for spiral whorls, a shell aperture, and mineralized texture. Avoid vinegar testing if preservation is important, since acid dissolves carbonate shell material.