Could this be Chocolate Basil? If no, what is it?

It's leaves are a chocolate brown color, and they have a basil scent and flavor. I thought Chocolate Basil didn't exist, but if it does, this might be it. Thank you, for any information you may have, to help me ID this herb.

a second pic

I think it is Dark Opal Basil.

So sorry Strange! It'd be worth a fortune were it Chocolate basil.
Vickie

One can't win them all, Vickie.

True, But it's fun to try.

Could be African Blue, which doesn't reseed, even though it blooms.

I'll have to get both kinds, then I'll find out, which one it is.