This one appears to have actual values for various types of glass, but I don't know enough to tell if they're common or highly specialized types, or if the values are actually the ones you're looking for.
"When you have a hammer..." reminds me of my own tool-abusers motto (at least I think it's original with me):
"When all you have is a hammer, everything looks like a screwdriver." :-)
(no subject)
http://en.wikipedia.org/wiki/Dispersion_(optics)
http://www.engr.udayton.edu/faculty/jloomis/eop501/
Loads of stuff here (I'm bookmarking that one myself, it's a great reference site!)
This one appears to have actual values for various types of glass, but I don't know enough to tell if they're common or highly specialized types, or if the values are actually the ones you're looking for.
"When you have a hammer..." reminds me of my own tool-abusers motto (at least I think it's original with me):
"When all you have is a hammer, everything looks like a screwdriver."
:-)