Thanks for showeing interst in my qestions,you made a very understandble and clear discribtion of the procress Jim. mike
Sandy, if you're looking for the naturally black form of Mica (found under the catchall name of 'biotite') in order to get the same tonal inversion as in a tintype, you will probably have to go to a mineral dealer. It absorbs light very well, so if you can find a sheet you can always make more by cleaving it into thinner sheets still.
If you want the transparant type there are consumer applications like the stove windows mentioned by Don which make large-ish sheets easier to find. Small pieces - up to an inch square - of very high quality are also available quite cheaply from microscope suppliers.
To answer the original question: I love intaglio printing, so I would have to go with photogravure. I am still looking for colour photogravures to see if I like them as much as I think I will.
Jim, my daughter mentioned that you might start a class on carbon transfer . have you planed a date yet?
Tiles are quite fragile and porous when bisque-fired, and suck up instantly any fluid (your tongue sticks to them when it touches the surface). I had to coat over this surface in order to be able to print an image on it, which, however, made the subsequent glazing layer much more difficult to apply. That was the problem I was still fighting with when I had to abandon my experiments for the time being.
I might, however, be able to pick them up again in some time.
Thanks, Lucas, that's very interesting. I may have to abandon my experiments because I can't find any way to abrade the glazed surface enough to take a substrate. Even very rough sandpaper doesn't scuff it at all.
3D prints made from slides taken with a 3D camera.
Talking photos in frames.
3D prints that move as you walk by (as seen in "Back to the Future 2").
Those are three of the most interesting.