Board Thread:Questions and Answers/@comment-194.118.247.139-20130627160444/@comment-1757231-20130628145914

Well, since you have UU-Matter, you've got to have an Energy Condenser, right? So, you could use UU-Matter to create Glowstone, and then condense that into Silver. Voila!

The reason they couldn't introduce that, by the way, is because they come from different mods. UU-Matter is from IC2, while Silver is a RedPower Ore.