Turritella Agate … or Not

Sometimes things get named too fast and once labeled incorrect associations are very difficult to rectify.  Have you ever seen “turritella agate” at your favorite fossil dealer’s table?  It has often been polished into cabochons designed to display the whorls of the spiral shaped shell and the agate that has filled the apertures.  Raw specimens are attractive as well.

The cabachon on the left is 1.5” high and is from Utah.  The raw hand sample on the left is from south central Wyoming.  Both are incorrectly labeled turritella agate in their internet source.

The cabachon on the left is 1.5” high and is from Utah. The raw hand sample on the left is from south central Wyoming. Both are incorrectly labeled turritella agate in their internet source.

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