Reichenbach Caramel (RL7205) is a medium, pinkish brown opaque colour. It's a reactive colour, and is translucent when used in thin layers on top of other colours. This means that it goes a bit blotchy and see-through when you use it on top of very dark colours, and it fades out and looks yellower than itself when it's used on top of very pale colours.
It's browner than Flamingo, but it has many of the same kinds of reactions with other colours.
Here you can see the colour variation of Caramel. It can't decide if it's brown or pink. And then, when you reduce it, it can't decide whether it's purple or blue.
Silver leaf turns Caramel a yellowish colour. Reducing and encasing the silver just makes for a yellowish grey layer under your clear, which it seems wise to avoid.
I got pretty colour and reaction outlines from my reducing silver glass frit on top of this colour. I also got a very nice, almost-magical starting strike from my TerraNova2 frit. So, this colour seems to make a very pretty base colour for silver glass.
So, that whiteish outline that developed around the Copper Green in the leftmost bead is new for me. Or at least I thought it was until I looked back at my Flamingo test results and saw that Copper Green did this with that colour as well.
On top of Caramel, Opal Yellow separates.
Ivory and Caramel develop a reciprocal (and quite intense) black line reaction which, because of Caramel's translucence in thin layers, means that the Caramel develops a strange, brown blotchiness on top of Ivory.