Macrophotograph of the structural detail in a piece of fossilized wood from Sweet Home, Oregon Image #3918BW
Jasper replaced petrified bogwood from Oregon; also known as Gary Green jasper; Image #3981
Macro photograph of patterns and colors in a piece of petrified wood (Woodworthia species) from the Chinle Formation in Arizona; approx. 225 million years old Image #2615
