Can anyone tell me if there would be a discernible difference if you had two Mercs side by side one in Obsidian black metallic and the other just non metallic black? I have tried so hard to see little flashes of colour in certain lights to confirm the difference but to me it just looks black and not metallic! The astral black Mini coluor has some lovely effects in certain light so to me obsidian ( found the word in Bill bryson's short history of everything the other day!) is a little disappointing .