OK, one more naive thought.....could cyanotype used here? From what I understand, various iron oxides are important colorants in glazes. I believe the blue color is ferric ferocyanide. That must reduce to something interesting...
PhotoCeramic Presentation at the Santa Cruz Museum of Art&History
Michael Sandquist, co-founder of Paradise Pictures(http://paradisepictures.com), the world's leading producer of highfired color ceramics, will be the guest speaker at the February 23rdmeeting of the Historic Photo Processes Forum at the Santa CruzMuseum of Art&History. Sandquist, a former teacher of 19thcentury photographic processes, will discuss techniques for producing photo ceramics of the highest quality and permanence. For more info:
It's great to know that there is someone out there who is an expert in the technique and I'm interested to know more about Michael; I wish I could be there. Does he print 3-color photos on ceramic??
When you consider photographs that have the potential for lasting centuries, if not millenia, photo-ceramics rank highest on the list. The permanence of vitrified pigments and the durability of ceramics make this a very intriguing process.