My wife and I have become lapidaries, and as such we are always in a search mode looking for rocks to cut and polish. This particular rock was not one of them, but I did think this lichen was really pretty.
This image is one of our creations. This is from an agate.
We spent a month in Arizona and never saw any wildlife, except for a few birds. There are rocks everywhere, and they are all baked and weigh nothing. It is an interesting place.
In the summer of 2000 I found something on the ground in an open field east of where I live in northern Colorado. I picked it up and brought it home.
I have always picked up interesting rocks and some of them I polish in a tumbler. But this looked more like a bone than a rock and I was intrigued by the veins of crystal.
In January of 2002 I contacted a professor of Geology at the University of Northern Colorado. He tested my find by dropping some sort of acid on it and since there was no reaction he was able to tell me it was not bone, but in fact a nice chunk of petrified wood.
He also told me that the silica that is laced around and in my piece dates it to the tertiary period which is between two million and sixty million years old!
Sometimes I hold this wood and try to feel the years that have passed in its time. Mostly I just feel the weight of my piece and the dumb luck involved in finding something so cool.