Nice article. I know I'm being a stickler, but Prussian Blue is not the first synthetic blue. It is the first synthetic made using more modern techniques. The Egyptians created two artificial blues: Alexandrian Blue (a double silicate of copper and calcium) and the ancestor for Delft blue which is based on cobalt. Cheers, Patricia Savage 816 Valerie Dr. Raleigh, NC 27606 www.psavageartist.com [log in to unmask] 919-859-2789 Kathleen Garness wrote: > Prussian Blue was the first synthetic blue pigment - but it seems its > role in nature goes even deeper: > > http://www.sciencedaily.com/releases/2009/12/091214121451.htm?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciencedaily+%28ScienceDaily%3A+Latest+Science+News%29&utm_content=Google+Feedfetcher > > > Interesting! > > KG > > > "Never doubt that a small group of thoughtful, committed citizens can > change the world. Indeed, it is the only thing that ever has." - > Margaret Mead > > Need to leave or subscribe to the Sciart-L listserv? Follow the > instructions at > http://niobrara.unl.edu/users/lana/gnsi/listserv/ > Need to leave or subscribe to the Sciart-L listserv? Follow the instructions at http://niobrara.unl.edu/users/lana/gnsi/listserv/