Agreed, the new texture is crap, the old one was much better. Though the silver block does look good.
That's pretty much how I feel, the silver block works fine. The gold block possibly just looks dirty and is ugly tiled like the redbrick block. If the bottom half of the gold block wasn't so dark would probably look nice.
The current gold had a good idea behind it, but it just didn't turn out right; I like how it gets darker from the top to the bottom, but as it stands, the middle texture turns too dark and orange to be aesthetically pleasing gold.
I made these iron and gold textures after downloading Duke 2.0's Spelunky retexture, and I rather like them, even without the other spelunky textures.