Macro photograph of the structural detail in a sliced Graveyard Point plume agate from eastern Oregon Image #3432 4673 X 3115 pixels
Macro photograph of the color and detail in a backlit Sheep Creek plume agate; Oregon Image #3525 6037 X 4009 pixels
Macro photograph showing the banding pattern in a Laguna Lace agate from Mexico; Image #2311BW 5439 X 4303 pixels
