Where can I find the prices of rare earth metals?

Question

I'm looking for free online resource where I am able to check the prices of rare earth metals like Neodymium, Terbium and Niobium. Need not be very updated but have price data for at least a year ago.

Answer 1

Try a search engine like Google...

Here's two sites I found doing just that for Terbium (Tb):
http://www.chemicool.com/elements/terbium.html
http://www.baotou-rareearth.com/index.html