Rock Identifier
Turritella-type gastropod shell fossil (Marine gastropod shell, likely a high-spired turret shell; exact species cannot be identified from the image) — fossil
fossil

Turritella-type gastropod shell fossil

Marine gastropod shell, likely a high-spired turret shell; exact species cannot be identified from the image

AI-generated identification · may be incorrect

The specimen is a tapered, coiled shell with glossy cream-to-brown bands and raised spiral ridges. Original shell is chiefly calcium carbonate (usually aragonite); Mohs hardness about 3–4, though fossilization may alter it. The visible color and polish may be natural or treated.

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Physical properties

The specimen is a tapered, coiled shell with glossy cream-to-brown bands and raised spiral ridges. Original shell is chiefly calcium carbonate (usually aragonite); Mohs hardness about 3–4, though fossilization may alter it. The visible color and polish may be natural or treated.

Formation & geological history

Formed by a marine snail; fossil shells can be preserved in sedimentary deposits when buried and mineralized. The specimen’s age and locality cannot be determined from the image.

Uses & applications

Used as a collectible and decorative specimen; fossil shells are sometimes incorporated into jewelry or ornament.

Geological facts

Its tall, many-whorled shape is characteristic of turreted gastropods, but visual appearance alone cannot establish a precise taxon or whether this is a fossil rather than a recent shell.

Field identification & locations

Look for continuous coiling, successive whorls, and spiral sculpture; check for mineral replacement or sediment matrix to distinguish a fossil. Similar shells occur in marine deposits worldwide.

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