This nice slab of Plume Agate is from Oregon. It has great plumes of color in shades of brown floating in a translucent clear to milky background. There is a nice sparkling drusy pocket at the edge of the slab that could make a terrific looking cabochon.  There are a few fractures in this slab which can be seen in the photos.

The slab is about 6.5 mm thick.

Photographed wet to show details and dry to show the slab dimensions.