Pure Green at the Naturhistorisches Museum in Vienna

Lord Percy: After literally an hour's ceaseless searching, I have succeeded in creating gold, pure gold.
Blackadder: Are you sure?
Lord Percy: Yes, my lord. Behold.
Blackadder: Percy... it's green.
Lord Percy: That's right, my lord.
Blackadder: Yes, Percy, I don't want to be pedantic or anything, but the colour of gold is gold. That's why it's called gold. What you have discovered, if it has a name, is 'green'.
Lord Percy: Oh, Edmund, can it be true, that I hold here in my mortal hand a nugget of purest green?
Blackadder: Indeed you do, Percy, except, of course, it's not really a nugget, it's more of a splat.
Lord Percy: Well, yes, a splat today... but tomorrow – who knows, or dares to dream?

www.youtube.com/watch?v=TkZFuKHXa7w