The medal weighs just over 6 ounces and measures 2.5 inches in diameter.
NBC News reports that Lederman has not said what he plans to do with the money from the sale, but quoted Fermilab, where the scientist worked, as stating Lederman and his wife hoped the auction would raise awareness of physics research.
More from CoinWorld.com:
Counterfeit American Eagle gold bullion coins improving in design quality
1909-S Lincoln, V.D.B. cent in upcoming government auction
American Buffalo bullion coin sales lagging behind previous years
Making money with Jefferson nickels
Q. David Bowers: ‘Gold’ a longtime synonym for ‘value’
Keep up with all of CoinWorld.com's news and insights by signing up for our free eNewsletters, liking us on Facebook, and following us on Twitter. We're also on Instagram!