Soft Tissue Fossil Slug- Gary

A mineralized slug, Gary, that is semitransparent. On Gary’s face the upper and lower tentacles can be seen, with the respiratory hole on top. On the bottom side the foot is visible. Holding Gary up to a cellphone light shows his inner parts.


Gary is approximately one inch long, by a quarter inch wide, and three-sixteenths of an inch in height.

Acquired From:


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Amber R

Mearto specialist

June 3, 2024
Fair Market Value:

Hello, Luis, Thank you for your response. It was difficult to understand the context of the images I was given. I appreciate the clarity. Carnelian Raw Stone, Crystal Red Agate From the images of the example given, I believe this is a rough carnelian red agate. Agate is found in North America, South Africa, India, and Northern Asia (Russia). Agate formation occurs by the accumulation of silica-rich groundwater in volcanic and metamorphic rocks, over thousands of years. The unique form and clarity of your example with several bands present would be of interest to a jeweler. Tumbled and possibly carved into bead(s) or another form; this 1" selection could be a great necklace pendant. Agate is considered a semi-precious stone. In many cultural traditions, including Hinduism and Buddhism Chakra energy healing, red agate is noted as a healing property and a stone that promotes strength. Your example does look like a snail or slug specimen! But, fossilization of soft tissued animals such as gastropod mollusks does not exist. Soft tissues such as blood vessels, muscle and skin decay and disappear over time, while hard tissues like bone or shell may gradually acquire minerals from the environment and become fossils. All we have in fossilized form of these creatures is the remains of the shells and the impressions found in sediment rock.