Keith,
The color of the image is most characteristic. It is a very reddish-brown leaning towards red. The contrast is not high. I would say about like that of a chrysotype.
I am doing a show called "Heavy Metals" which features daguerreotypes, platinotypes and chrysotypes. I just threw in a couple of uranotypes to catch the attention of the general public. You know what happens if you say "uranium" in a crowded room. 
I did make one print where I put uranium over platinum. It is quite interesting.
I know of another formula that produces a blue image with better contrast. Its not the prussian blue of cyanotype but more towards a cobalt blue. I have made a couple prints with this formula also.
I am still in the process of investigating uranotypes so I can't tell you much more.
Bob Schramm