Macro photograph of the structural detail in a sliced Graveyard Point plume agate from eastern Oregon Image #3436 4727 X 3124 pixels
Strong angular backlighting emphasizes the concentric structure patterns this Montana agate Image #2698 4558 X 3200 pixels
Macrophotograph of a cut and polished Hijo del Sol agate from Mexico Image #3866 4912 X 6034 pixels
