From the collection of Don Volkman, photographed by Karl Volkman. http://www.mindat.org/photo-152268.html

Plume agates have fluffy inclusions which often appear to be soft and have depth.  Sometimes, plume agate inclusions resemble feathers, plants, or flowers.  Possible colors include red, orange, yellow, pink, and white.  Plume agates are most commonly found in Oregon’s Graveyard Point, Idaho, Colorado, West Texas, and Mexico.  The agate pictured is from Texas.

Source: The Gemrock, 7/2014
From the collection of Don Volkman, photographed by Karl Volkman. http://www.mindat.org/photo-152268.html