A fossil shell imprint.

Fossil shell imprint: I found this in Aberdeen, South Dakota. As best as I can figure, it came down through the Wisconsin Glacier.

Location: Aberdeen, South Dakota

Fossil Collector: Robert S.

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Turritella agate from South Dakota is easily slabbed and polished with a diamond saw.

A six-inch block of turritella agate found in the Black Hills of South Dakota. The agate was larger, but has been slabbed into a block. Turritella Agate can be slabbed and polished into beautiful slices.

Collector: Robert S.

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Rating: +3 (from 3 votes)