Macrophotograph of the structural detail in a cut and polished agate Image #4055 6144 X 4080 pixels
Macrophotograph of the structural details in a plume agate; from the Owyhee region of eastern Oregon Image #3754 6293 X 4827 pixels
Macro photograph of the colors and patterns in a tube agate Image #2733 5241 X 3970 pixels
